IA's stance on freakin movies in the sig?

[Atlblkz06]

I've noticed that many people on here have animated gifs that are anywhere from 780kb to 8mb in size.

So what is IA's official ruling on this - does IA allow pictures in the signature?
I usually have other downloads going on and the damn threads take forever to load with these stupid pictures taking up bandwidth.

I saw someone's sig that was edited by a mod and it said "no pictures in the sig line". If yes, is there a way to turn it off so that I don't waste my bandwidth on other people's lame pictures?

Not to mention - THIS COSTS IA MONEY to host. Every time someone views a thread with these pictures - 10mb+ is being uploaded for nothing.