Yes, I know a LOT of home educators, and many of them are teachers. I've never pressed them why they choose to home ed, but yes, there are more teachers in the home ed community than other professions it seems!
We home ed. We live in a place where a lot of people do, and its a pretty unexceptional choice. Most of the sports centres, theatres, etc. have daily home ed sessions and my kids have a wide bunch of friends who they see most days. They're on sports teams, choirs, drama groups, etc.
We're setting out with GCSE's and using tutors for the subjects we need to - the kids are enjoying their courses so far.
All of my kids do non-home-ed groups as well, so they have a reasonable bunch of 'school friends' as well.
I'm not particularly evangelical about it: we fell into it, thought we'd try it for a while and it works really well for us. We're pretty conventional, follow the curriculum and just crack on with what we're doing.
I'm 100% in favour of a home ed register. I know the home ed arguments against, but I've never been convinced by them, I'm afraid. Safeguarding kids comes first.