I was the OP of the SO question being debated here and I'm sorry for creating such a hubbub.
I'd like to point out that I made the first rollback with a note attached explaining my reasons -- as well as the second (because I was feeling chuffed) but the flurry of edits that followed came from 2 unrelated users, not me.
I chose the original title because it was entertaining (to me at least) and eye catching but also because it was accurate. I had no idea what I had done to the fact table after cancelling the update. "I accidentally a whole fact table" was exactly the state I was in at the time. I knew I had done something to the fact table and it was accidental but I couldn't say exactly what it was that I had done.
I understand the concerns of the community to provide clear questions and answers. I felt like the content of the post was serious and valuable enough that a bit of levity would be overlooked. I obviously under-estimated the will of the editors.
Anyway, my concern now is that the question as written "Corrupted database table with invalid query: what has it done and will it roll back?" is actually incorrect. The table wasn't corrupted. I'd not have a problem, for the sake of peace, to see it changed to a more accurate: "Invalid Update Statement: What has it done and will it roll back?" if anyone with the authority cares enough to make the change.
Lastly, I find the furor over this to be disheartening. I'm not here to cause trouble, I've been a member since the whole thing started and have preached the value of the site to everyone who's ever come to me with a question. While I take my work quite seriously, I think it's fun, fascinating and quite often funny. I have worked with the guys who never smile at work. "The Glower" and "The Sigh" are the only 2 expressions they own and you know what? They crush they enthusiasm out of a team. Using words like "Vandal" and "Troll" to describe a little levity and letting that sort of attitude pervade the spirit of the site is the short road to ending up like ExpertsExchange.