*I am really sorry with my grammar here, I got a headache right now and cannot write properly

Hi all, I want to know if this forum has option to turn use the signature?

got tired of people who are not reading the sticky threads and keep asking the same obvious questions again, again, and again.
I know I need to help every person, but some people just didn't read (they can get the answer from reading in less than 10 minutes..)
for example, I already posted that there is one type of fake racket that is on rise since few years ago.
the thread is there, yet no one read it..

so, I am thinking it will gonna make my life easier to put signature in every single of my post

such as:
read thread XXX before asking people to identify your racket fake or not

so what do you guys think?