What is with people who block people on Facebook?

[.Scorpio Dwad.]

As someone who has been blocked quite a lot I find it stupid and annoying, and I wonder why, what did I DO to make you want to block me?
Smarty, why can't you just communicate to them, they are being annoying or whatever.? And I can't ask most of the people who blocked me because I'm still blocked.
I take personal offenses very personally

[Smarty Smarticles]

Maybe you should ask this question to the people who blocked you.

I block people for many Reasons.
1. If that person is being Mean.
2. If that person is posting Nudes or really Inappropriate stuff.
3. If that person is SO ANNOYING.
4. If that person Spams you a lot.
5. If that person is your MOTHER OR FATHER. Or even your Siblings ... in general, your Family.
6. If that person is being a Bully online

EDIT- I don't really care about some of them. Because some are Fake accounts and I don't really have time to Talk to them and be nice. Why are you so mad about these people who blocked you?