Are their groups on rainbowdash worth joining, because they have a ton of them... http://laemeur.sdf.org/gs/group-index.html
@picklejarbob Here's a global group list http://qttr.at/1x9f Maybe theres more info in the !fedgroups group profile
@vinzv @einebiene http://qttr.at/1x9f does appear to be doing exactly what I was thinking of. Would pinging groups identify the dead ones?
There's another list of !Fedgroups at http://laemeur.sdf.org/gs/group-index.html It's an automated scraper, but it looks like it hasn't scraped since November 2016