Mad?, meh - did not think you comment was worth a reply - Since it just seems like standard whining imo.
1. The team have funding for 13.000$ each month, somebody must be liking what they are playing or seeing?
2. Not unheard that "games" go over 4 year in a development cycle - Not that this justifies their current amount of content.
Just saying its pretty common. Even for H-games, you will find many that are older then that. Heck the team I work for have 1 game and its over 5 years old, and not even done yet ¯\_(ツ)_/¯
3. I'm maybe a rare breed, but I like the eye for details within this games mechanics. Perhaps there are others then me, out of their 2000+ patreons that also like them, who knows?