History of your nickname.

I was thinking for a long time about what name to use for my Bluetooth profile (on my phone). And when I went to my friend's house (his name is Viktor), he decided to use his first and last name and called himself V_H. But then he changed it to the English version, V_X. So I decided to do the same. P_U (my name is Pavel), and then P_U. And now I use that name for my profile not only on the forum and in Bluetooth, but also in the game's profile.