Umm I care remember? Who is disallowing who from signing their photos btw?
Okay I've decided, now what?
Should I point out how it does distract from an image make a comment and hope they upload a new one without it or should I ask a question as to why they do it and through that question cause them to think about the value it brings?
Well you know how they say if you don't have anything nice to say, you shouldn't say anything at all?
I guess what I mean is, live and let die - if they are putting really annoying watermarks on their photos with no real reason, odds are they won't have much success. If they do, then either you were wrong about the watermark or they are just really awesome photogs, in which case they deserve to put a watermark on their stuff.