I think one of KJ's biggest problems is that his patreon is not very competitive with other nsfw artists of similar talent. A lot of other artists get a lot more subscriptions because there is a lot more initial value for becoming one because they offer an archive of all their previous works for only a few bucks. For KJ to not offer that even though all, or most, of his previous stuff is easily accessable in some form for free is rediculous. I mean ffs for $15 a month i only get access to two previous drawings and a discount on gumroad? I mean come on.
It's a fact that it a lot harder to get people to initially subscribe than get them to stay, especially if it's a low enough amount per month. A lot of people, myself included, completely forget that we're subscribed to someone on patreon, or at least forget to unsubscribe. And big whoop, you know, because it's only a few bucks a month, but it's a lot easier to justify that initial subcription if you get access to a whole breadth of content instead of just what's put out that month, which you may or may not like.