If it's an honest mistake because we're human beings with complex personalities, then no. Shit happens, and the mistype is probably part of their journey toward self-understanding.
If it's a mistype because they read some shallow descriptions and then just slapped on the first label that seemed suitable, then ... yeah, kinda. My primary concern would be the misinformation that gets passed onto lurkers, since type sub-forums are often used as a litmus test for how well a particular type "fits."
But if we're dealing with somebody who is willfully mistyped and goes around spreading misinformation? That really bothers me. (Yup, I'm thinking of someone in particular.)