I'm not sure how many furries really play SC2, though I do know a fair few myself. I have just created a group on there called "Furry Scalie Collective" and invite you all to join. There is an SC2 link but I'm not sure how it might work for everyone. :P
starcraft://group/1/135206
You can find the group using the find group method though and type in the name in the quotes. There are other furry groups too, some which have a hundred members, though none of them are even online and seem abandon.
Add tags as necessary to the journal if you can think of anything to add please. :P