1) interesting that you compare a porn game with a charity
2) I don't know you and you don't know me and none of us know the Dev personally to be able to judge
3) did you even support the dev financially so that you can be so angry at all? Anything else would be hypocritical in my opinion.
It's actually quite simple.
People paid money to contribute to the construction of a project. By donating money, they automatically will set the expectation of seeing the project being built up. This was not the case for almost two years, with very few posts to go along with it and the few he did made were filled with incoherent and changing plans, shady excuses, and it become obvious he didn't have any kind of motivation in continuing the project. First he wanted to make a big 0.7 update like he did before, then release the entire content in a 1.0, then abandon it, then make this bi-weekly update thing.
Despite all that, he continued to make his Patreon page open and never made statements in either is opening page or in public that he was taking a break or putting Milfy City on hiatus. He continued to bank tens of thousands of dollars EVERY MONTH for a project that was basically iced up.
This also caused his Patreons tiers contributors to not receive their rewards or have their rewards become meaningless (Such as the three day early access). If it wasn't for Patreon threatening to pull out the game from the site, it's very likely we wouldn't have any news for a long while still.
This set a very dangerous precedent; people can easily be lured into a pretty, but ultimately half-baked project where the only reason this game kept being funded is due to the lack of communication, where new people got interested in the game funded it not knowing that the previous issues. Milfy City received a monthly budget any indie game studio would only dream of having. And it was all wasted away.
It's unprofessional.
It's deceitful.
It severely damages the reputation of lewds game in general and can make support of new, truly great project harder.