No, we all need somewhere to vent and discuss frustrations from time to time. It doesn't make that person any different than before, it just means they're able to express their views and concerns and possibly get helpful advice without judgment :)
Depends on the person and what they are in therapy for. Lets say it was cutting... Yeah that's pretty freaky and i would be shocked if anyone i knew did that.
There was a dance mom that was such a freak, and so was her dancer that they were thrown out of the studio in the middle of comp season. Only a month left in the year! If they got some help I'd think much more of them.