Facebook and names

I found out the utility of Facebook: when you meet someone and he/she seems nice but you don't want to give him/her your mail but neither you want to give him/her a fake mail, you can leave him/her you Facebook name. Everybody is happy and you don't have to warry about eing annoyed. For that reason, I'm getting a lot of new Facebook friends, even though now i have the problm to remember who is who, also because to me in this country traditional names (like merve, for example) fit very well to male and females :)