First off, plenty of your supporters came from F95, so no need to start segregating supporters and "ugh, those guys from F95". I come from here, and I support you from time to time, but your insinuating my peers who don't support you are trash makes me want to support you less. Of course, I might be reading too much into this, but that's how it came across.
Second of all, you are here and you are a smart guy. I'll assume you HAVE seen other games do this same thing only for it to be one of the first signs of burnout/loss of focus/inability to reign in the scope of their work and a plethora of other negative connotations which eventually lead to quality loss of the main project in the form of smaller updates, or less focused updates, or longer delays between updates, or simply milking by delaying the finishing of your project, etc. Surely you have either seen this or are intelligent enough to have already gone through that line of thought and have the ability to understand where the complaints are coming from?
Also, this is an age old argument in every developmental line of work. Every single nanosecond you use for something else could have been used to further your main project instead, and time is usually very limited. Only on patreon is it a logical idea to drag out your main project by any means necessary. I personally always see these side projects as a colossal waste of time. In this specific case instead of 20 hours of blackjack and seeing tits I already saw we could've had a new sex scene in the main game, or another day bringing us closer to the end of the story kind of deal.
I can see where you are coming from, and my argument for that would be simple: thanking the players is cool, but perhaps focus on finishing your main project, keep track of your ideas, and then thank the players with extra content AFTER the main thing is over?
However, the bottom line is you do you. I am a skeptic, from where I am standing this is going into the milking territory and whoever is okay with it gets labeled a moron in my book. But that is also okay. Everyone is free to do as they like. We all have our wallets and we all vote with them, if there are enough morons to make it work, by all means go for it. For everyone else there is F95, and everyone should end up happy in the end.