I wrote “The Indie Author’s Guide to Newsletter Swaps” in February, and I meant every word of it. Newsletter swaps were the cheapest way I’d found to break the Cold Start Paradox, that loop where you can’t get into swaps because you don’t have a list, and you can’t build a list because you aren’t doing swaps.
Then I watched my lists for six months, and what I saw made me rethink the advice.
The numbers on my Miles Phoenix newsletter showed one pattern: open rate of 43%, click rate of 15%. When I send a launch email for the Warfront Dispatch, people buy the book. That list runs on readers who found me through my novels, signed up because they wanted the next one, opened the follow-ups, and actually read what I send them.
My M.P. Blackthorne list showed something different: open rate of 25%, click rate of 4%. Blackthorne was the pen name where I leaned hardest into group promotions and BookFunnel swaps, and while the subscriber count grew faster, the list looked deader by every measure that matters.
Same author, same email platform, same approach to writing newsletters, same MailerLite account, same everything. The only variable was how those subscribers arrived.
What I Mean by “Freebie Seekers”
This isn’t a character judgment, since freebie seekers are simply people who responded rationally to the incentive they were handed. You put a free book on a multi-author landing page with 40 other free books, and they grabbed yours, plus eleven others, because why wouldn’t they? They gave you an email address and you gave them a download link, and whatever relationship existed ended at that moment.
The problem is that this transaction has almost nothing to do with wanting to read your books specifically. The reader didn’t discover you through your writing or your world, they discovered a page full of free stuff, and you happened to be standing on it.
Dan Padavona ran the numbers on this over six months and published them, which took some nerve, because the results don’t flatter anyone. He was adding 200–250 subscribers per month through BookFunnel list builders, which sounds like real, meaningful growth until you look at what happened next. About half never opened a single email, so he deleted those, and of the 589 who remained, only 123 ever clicked a buy link, which works out to 20.9%.
His raw cost per subscriber was $0.15. His cost per subscriber who actually clicked a purchase link: $0.73. And clicking a buy link isn’t the same as buying, so his real cost per paying reader was higher still. It gets worse when you factor in the damage those dead subscribers do to everything else on your list.
The Costs You Don’t See
MailerLite charges by total subscriber count. Not by how many people open your emails, not by engagement, not by clicks, not by a single measure of whether those addresses are worth anything to you. Every subscriber counts the same whether they buy every book you release or whether they’ve never opened a single message you sent. A list bloated with non-openers pushes you into a higher pricing tier for the privilege of emailing people who ignore you, which is a frustrating way to spend money.
That’s the minor cost, and it’s nowhere near the worst of it.
The major cost, the one that compounds quietly, is deliverability. Google and Yahoo monitor how recipients interact with your emails, and they weigh opens against complaints and against how long your messages sit unread. When a large percentage of your list ignores you, your sending domain gets classified as low-value. Your emails get quietly routed to Promotions tabs and spam folders, and the people who suffer most aren’t the freebie seekers who were already ignoring you, but the engaged readers who actually want to hear from you. The engaged 43% starts dropping because your domain got flagged.
ScribeCount published conversion benchmarks earlier this year, and the ordering matters more than any single figure in it. Your own existing subscribers sit at the top, converting somewhere between 5% and 15%. Back-of-book links inside your ebooks come next at 3–8%. Newsletter swaps and cross-promotions manage 1–4%, which puts them barely above paid ads against cold audiences at 0.5–2%, and only one step further along than cold social media, which limps in at 0.3–1%.
Swaps land closer to cold advertising, in other words, than to any channel you actually own. The range is wide because genre match matters enormously. A swap with an author whose readers love the same sub-genre can convert at 4%, but a swap with someone in a loosely related genre drops below 1%, and most group promos land on the wrong end of that range because the matching is approximate at best.
Why the Incentive Structure Creates This
Group giveaways are designed to generate volume, and on that narrow measure they deliver. You join a promo with 40 authors, everyone emails their list, thousands of readers hit the landing page, and you walk away with a few hundred new email addresses. That part of the pitch is true.
But the reader on that page, scrolling past forty covers, is facing a buffet. They’re picking up everything that looks interesting, working through a dozen authors in a single sitting without registering a single name. Some of those readers will end up loving your book, but most won’t remember your name by the time they check their inbox the next morning. You’ll send them a welcome email, and it’ll sit between the welcome emails from nine other authors they signed up for on the same page, unread and eventually forgotten.
One-to-one swaps are better, and meaningfully so. When another author personally recommends your book to their list, that recommendation carries weight because the reader trusts the recommending author, and the genre match is usually tighter because you picked each other deliberately. But even here, the subscriber signed up for a free thing, and they didn’t find you through your work, they found you through someone else’s endorsement of a freebie.
Christopher Schmidt, who’s been documenting his BookFunnel and StoryOrigin experience publicly for years, identified two species of dysfunction in how swaps actually work. “List leeches” join swaps to get their book promoted but never email their own list with their partner’s book. “List stuffers” join 30 or more promos simultaneously, diluting every recommendation to the point of meaninglessness. He found a PNR author with 16,000 subscribers who had 65 active shares in a single week, and most of those shares produced single-digit clicks. The subscriber count was, in every practical sense, a costume, and her actual reach was a fraction of the number on her MailerLite dashboard.
