I've had a quick look at their Discord and it's still fascinating from a sociological point of view (it's a veritable zoo of the weird), although indeed much less active than before (two-three really active at most).
The dev was on again in June, showing a gif of a cat hitting the keyboard very hard (a very well-known and old gif), no doubt to show that he's still working "very hard" on the "imminent" release of the game's one-month update! haha
But otherwise, a few months ago, when more regulars were still frequenting the discord, some of them were asking questions and getting impatient with the game's release, declaring that they no longer believed in it either.
Since then, all that's left is a shitposter who publishes in a constant loop captures of manga based on prompt starting with Blue-sama doing such and such crap.
In short, even the Discord has been emptied of the last few people who used to frequent it assiduously, with the exception of a couple of people, and the newly lost who quickly leave. The last of the faithful has finally understood that "the mass is said" (old French expression coming from Catholic Latin to say that a situation is irrevocably over).