What does "Ask for a pm" mean?

[Inventor]

Yeah so0o0.. what does it actually mean? I see it in peoples' sigs and I'm wondering if that has to do with scam/anti scam. I'm not exactly sure so that's why I'm asking here.

 

[Pen]

Means ask for a private message. So you don't get any "it was an impostor" shit.

 

[Inventor]

K. Thank you very much. I was thinking it was for verification etc.

 

[born worrior]

Right on Pen