Re: Can you multi-site BuddyPress?
No this is impossible or either not recommended. If you go look inside a database with wpmu/buddypress you’ll see that without even a second wpmu/buddypress install, it’s a total mess since you get a few new tables for every blog/user, now imagine that you have 200 wpmu/buddypress installs in one database and then have 10.000 users per install. It’ll be a huge mess and probably make your server/sites really slow.
Only possible solution would be to make multiple databases, with one database per install. If your on a cheap host, this’ll be impossible, but if your on a dedicated or self hosted, you could get this to work. Still won’t recommend this though, since it’ll take a lot of resources.