i don't know what get's me more about some dev's it's like they get a patrion are on of those sites were there get donations and the money goes to there head's or something. i mean i can understand some getting mad because people who donate tring to tale them what to put in there gane and stuff but it's real hard to say whay goes through the dev's minds.
Most "patreon games"'s development tend to slow down when they get popular yeah.
There's actually multiple possible reasons for that :
How to keep your fans (and so the "patreon money")
For this reason, developers tend to slow down the progress of the "main content", make polls to ask what do the players want next, and release pointless stuff because it make their game "more complete".
Anything to make sure the game does not progress in meaningful ways, and instead create new side content that doesn't actually matter to keep the illusion of progress, from one-time NPCs to time wasting mini games.
Perfectionism
The developer may start getting a lot of unexpected money, so they may want to use it to make their game even better by hiring artists for CGs, sprites, music, or even voice. They might also search for more complex scripts to make their game more unique.
All of that takes time, and some developers have it even worse since they may wait that everything secondary is ready before releasing their patchs, making everything slow down if one thing takes a while.
Like the first reason, it can also make the developer start putting useless stuff to make the game more complete, like mini games, for example.
Passage of time
The developer gets older, they have new priorities and their lifestyle may also have changed, maybe they got a lover, or even had a kid or two... Or maybe they're simply burnt out.
All of that can happen when the development start getting very long (As a reminder, LOQOO started development around 2016/2017
so it's already been at least 7 years), and slows down progress, either because the developer have less time to spend in development, or simply because they're not as much interested/motivated in the game itself.
At least, that's what I usually see in most games in development like that