How do add a sig to my posts?
You probably have to make a financial contribution to the site. I think most of the people with sigs, you'll find, are Mentors or Contributors, I could be wrong however.
That's correct, if you are a contributor, you can have a signature, as well as other perks.
As a contributor, you have the ability to defy known laws of physics such as being able to move from every forum faster than the speed of light, being invisible, the abililty to stay flame proof...well, at least the second one is true ;)
I can leap tall buildings in a single bound too!!
Separate names with a comma.