'm gonna keep using cartoon characters with the name Luna. I be scary.
More seriously, some of us need to keep relatively anonymous to protect those dear to us, or are in situations where getting outed is not an option. Generally posters in this category are consistent with their stories, and stay around for a decent amount of time.
If I'm a faker, then I've been trololol for about 2 years.

. (Then again I have never actually posted in the introduction thread...)
Troll posters with fake stories are annoying, and will continue to occur. Sometimes the posts require well thought out answers and using the time on someone who is not genuine is time wasted.