The developer of DarkBase 01 has outgrown you, Steam.

Opened a page on Steam and noticed a new notification on the invites page. Turned out to be a group kick notice. Don't see those too often, but even more, it's the first time I've seen one from an official Steam group. I didn't even know it was possible. Turns out the dev of the game doesn't like the response he has gotten from Steam users, kicked every user but himself from the group, has pointed fingers at their emotions, and made his reaction fairly clear.

Here's the announcement:
http://steamcommunity.com/games/358480/announcements/detail/237910385975788191

The dev account, with lots of random advertising in its own comment section:
http://steamcommunity.com/id/solarstormstudio

Seems like there's more and more indie devs that cannot handle negative feedback, especially when some of it is probably immature.
Guess we can expect to see no improvements ever made to the game.

EDIT: looks like he deleted that announcement. Guess even he found his actions to be inappropriate. Or, somebody influential advised him to.