Sigs are bandwidth, but the bigger issue is the big ones are sort of a pain to scroll thru
well you actually get blind to ones you have already seen a dozen times.
To keep your sig noticed, change it out periodically and you can also click the option below once and awhile to shut off your sig on a particular post which I have done here.
and smiles are great but the selection here is very poor, I often import them.
My humor can be edgy and they can help point out that you intend humor and not harm.