Editing a wordpress theme, credit or not to credit?
 

I was wondering.. if you edit a wordpress theme you downloaded for free quite a bit... do you still give credit on the bottom?

I've seen plenty of sites that use themes I've seen without giving credit, but at the same time I don't want to piss anyone off..

what do you guys do?

Leave it up, doesn't hurt you and gives them a link for their trouble. If it's one of those long link/description types, def trim it down though.