The signature that down isn't for me , and i can't set signature from mainly! So how it happen,am i got hacked?

You got your answer already here so why you open a thread about !

Newbies cannot set up their signatures unless you rank up to jr.member or purchase a copper membership.

--> https://bitcointalk.org/index.php?action=credit;promote

thanks sir for the inform

You can read also here a bit to understand the forum https://bitcointalk.org/index.php?action=help