Recent studies found out that the use of pseudo name on forums and social utilities like Facebook, Instagram, Twitter, etc. could actually portray and express the opposites of one's true personality. This is because it gives confidence living as a different virtual super person without having to reveal oneself. Fulfilling a super fantasy, sort of.
Fixating or role playing a certain cool icon or taste and style of pseudo name could actually develop a new personality. "This is actually bad," researchers said. Since sooner or later, the user won't noticed that the character would eventually surface in life at some point in time. Also, having expressed a part of one's ego in the crowd could give an addictive reward and quite fulfilling feeling. The tendency is that people try to hide their good side in a corner while some exaggerate and rather display stupidity and sarcastic humor because of that acquired sense of power.
--Must be true, and I felt guilty