I'm not doing a poll, but I'd be surprised if very many people enjoy seeing them or having to scroll past them to get to the next post.
I'd be ok with removing that feature.
It seems like an easy fix to limit the number of lines that a sig can accommodate. I remember some people on the other board format talked about disabling sigs (don't know if that's available here) or even going to the extreme of placing them on ignore if they didn't want to see a poster's avie/sig.