Who are those competitors? The subject company is tho only one I know of like this. But I am not really active in the creative space so I'm ignorant.

Subscribestar, which I'm much more of a fan of since they have more common sense rules around NSFW art.

Common sense rules == completely banning all NSFW work?

https://www.subscribestar.com/prohibited_content

I'm all for having some SFW platforms, but let's not pretend that there isn't a dramatic, dramatic demand for NSFW content, and that banning it is nothing short of prudish.

No? Last time I understood from my artist friends who do kinky NSFW art (as do I), they use SubscribeStar's NSFW version, right over here if you missed it - (https://subscribestar.adult/)

I'm no fan of banning such things, but an outright ban is much clearer and more comprehensible than Patreon's very murky and subjective (to the point where it's almost impossible that they're not selectively applied, if only by accident) rules.

They have two URL's, one for adult content and one for SFW content. You're looking at the SFW rules

I don't think it has anything to do with common sense, from reading their guidelines it sounds like they just ban NSFW stuff all together.

Youtube and Facebook both offer monthly subscription plans for creators.

Which hardly anyone seems to use, at least for YouTube. I watch too much YouTube for my own good, and I can't remember the last time someone encouraged viewers to donate money on a recurring basis via any company except Patreon.

And the reason for this is likely that youtube takes at least 30% of the money, while patreon is around 5-8%

Gumroad is becoming a big one

ko-fi.com seems to morph more and more into a competitor.