This place feels kinda empty...

Is the community active somewhere else or is the game not very popular at all?

Sorry, I just had to ask this question, it's been on my mind.

Props to the dev who still updates the game though.

The community's not really dying. It's actually grown a bit after Games Done Quick put the word out. It's just that the entry barrier isn't as low as other rhythm games, say, osu!, because resources for customizing the game aren't nearly as easy to find or use for people who are new to it. Not to mention how we've always had this three or four way divide between groups of people who use different versions of SM for different reasons.

Most discussion has moved to facebook instead of forums in the past few years or so

Most discussion has moved to facebook instead of forums in the past few years or so
Gives me a good excuse to ignore it, since I don't use facebook.