Stainless is actually rather soft, as steels go. But still, steel would be a PIA to deal with.

At work I pointed out to the guy that locked his Bianchi to one of those wavy racks, that he locked is bike such that someone could simply lift it up and slide it over the rack (you know what I mean?) When I went out after changing, I noticed it was STILL like that. Granted, we have a guarded parking lot so there aren't random people coming and going, and from a distance it looks locked but.... still. He said he wasn't too worried about it because the frame is so big that few people could even ride it.... I joked, but it's just my size!

Now I hope it doesn't show up missing this afternoon!