Dimensional guidelines seem fine. Put whatever is allowed within a certain sized space. Site and advertising supporters could be given a bit more space or allowed pics vs. text only.
I'm not sure how much functionality comes with the software package that runs these forums, but in my opinion it would be nice to browse the threads with no signatures... Also on the left side of each post, the join date, location, post count, rep, and status buttons, all take up a significant amount of space. As a viewer, it would be nice to have the option to "turn off" that stuff (eliminating signatures and downsizing the name area to maybe just name, title, status)
That being said, thanks for running a great forum, Fenway!
You can turn off the signature if you want to.
My opinion, 5 lines of text in a sig should be plenty. Why would any body need any more than that? Also no pics. I get tired of scrolling down a page that 50% signature.
Chris