Hi, in fact dev choosing SubStar is no coincidence, according to his research, this was (and probably still is) the best site, which TOS is ok with the theme and contents of this nsfw game.
So unfortunately this is the only way of supporting him
Viewing post in Early Access 0.4.3.3 is now Available! comments
It really depends on how you interpret the guidelines of Pixiv: https://www.pixiv.net/terms/?page=guideline&lang=en.
My problem is that I can't be staking my living on the whims of the site (e.g. Patreon) and the interpretation of its rules. I chose SubscribeStar because it's the most reassuring thus far.
If you've seen similar content to REC where the author used a SubscribeStar alternative, I'm always down to take a look too!