Yes yes and yes. I almost have the same problem…
You see, I wanted new blog where I am anonymous, so that I don't have to censor what I write. I stumbled across the same problem as you:
- Accidentally made an edit with my real account;
- Deleted the site and recreated it with my secret identity.
As I wanted the Pro features of the site, I made real account the Master Administrator. This causes problems, such as myself accidentally editing a page. If my real account wasn't a member of the site, then I wouldn't have this problem (I wouldn't have edit permissions).
I guess the solution to this problem is to delegate Pro features to sites without being the Master Administrator of them — but this might get out of hand (“generous” Pro users may dish out their Pro sites, so that others don't need to pay).