Kbin used to try to do this. Not so sure about Mbin, maybe it does. Glad to see a Fediverse option trying to implement something other ones implemented.

Although I am curious how many people take the approach of clicking a random active user online—I know I come to these thread-based forums to discuss common interests, and would never use the feature myself because 1) no guarantee the active user has common interests 2) I would feel like a weird stalker. Curious about the mindset of those who do—and not trying to accuse them of being stalkers just because I personally would feel like one taking that approach.