Does online anonmity and freedom of access encourage antisocial personalities? Are they some of the hackers of cyberspace?
Do narcissistic people use the access to a numerous relationships as a means to gain an admiring audience.
Do people with dissociative personalities tend to isolate their cyberspace life from their f2f lives. Do they tend to engage in the creation of multiple and distinct online identities?
Are schizoid people attracted to the reduced intimacy resulting from online anonymity. Are they lurkers?
Do manic people take advantage of asynchronous communication as a means to send measured responses to others, or do they naturally prefer the terse, immediate, and spontaneous conversations of chat and IM?
Are compulsives generally drawn to computers & cyberspace for the control it gives them over their relationships and environment.
Do histrionic people enjoy the opportunities for theatrical displays that are possible in online groups, especially in environments that provide software tools for creative self-expresssion?
http://www.rider.edu/~suler/psycyber/persontypes.html