grahamperrin of all BSDs, FreeBSD has the lowest thread count here, due to FreeBSD Forums representing already the official site to ask for support. So, I doubt further splitting freebsd topics would be of any practical use. All things considered, we don't have -CURRENT tags for other BSDs, exactly because this is not an official support channel, and, on the other hand, there's more people here running -STABLE and -CURRENT branches than point releases.
And that's why it's not like we're "supporting" this or that here. Run whatever you want, just specify it in the opening post.
It's my impression that this forum mainly attracts new users who are experimenting with BSD in their free time, for fun/learning/development purposes and are keen to break stuff or run experimental releases. This is in contrast with FreeBSD forums are full of admins running production-ready releases in a professional environment and that's why DutchDaemon and the other admins care so much about distinguishing between supported and unsupported branches.