Why can't I delete my sig line?

[PsychoSword]

I would like to get rid of my sig line. I've made it so it doesn't show up in posts, but I'd like to remove it from my profile as well and it won't let me do it. Will someone please help me? Or if a moderator could delete my sig line in my profile I would appreciate it. Thanks.

 

[Cougar Allen]

I fed it to the turtle.

 

[PsychoSword]

Hehehe

Thank you sir.