This crosses my mind every now and then when people put images in their signature. Small images (like when Jared and Dave had the KS logo in their signature) don’t bother me so much but larger images can be a real pain, especially if they’re in the sig of a prolific poster. Ants’ enw signature image jumped out at me and really takes up a lot of room. I think it really slows down reading experience and seeing the same image everywhere is going to get old fast.
I’d like to moot that we set it so you can’t have images over a certain size in your signature (if at all) We’re a discussion forum, primarily, and one avatar should be enough for anyone. I realise I might be completely alone on this, but I won’t till I say something 
(Ants, if you have access to this forum, sorry to be ‘that guy’, your pic is really cool!)