You've been to the Character Glossary of uncannyxmen.net, but still have questions regarding how someone's power works? This is the place to ask.
In Stinger's recent appearance she mentions to Omerta that she can't go out in public without being immediately identified as a mutant. What about her powers makes her so obvious? I know she has the pink hair now, but I don't believe she had that back in her AOE days. And even if it is natural, having pink hair isn't exactly a "OMG mutant" thing with the punk sense of style she's been shown to have.
Stinger has always had pink hair (although she was a punk in the 80's so there was no reason to think it was a mutation). Still, that is the only thing she could feasibly be referring to in that issue.
"If you want to tell people the truth, make them laugh, otherwise they'll kill you." -- Oscar Wilde