Thread: How to get a persons IP adress from a website?

Just a brief introduction to the situation. ON this website this person is
sort of stalking me around and on their profile there is a refrence to me....really creepy. I dont know if its just a troll or it is a disgruntled person i knew lol

I think i might know who the person is but i have no way of knowing other then you guessed it get their IP adress.

If i send the person a private message and they reply i can procure their ip address? I know it can be done but how?