BlueDharma,
I agree 100% that if the copyright mark is taken off, you should have the photo removed. However, unless you taking pictures of aircraft is your sole source of income, is it really worth the fight? They are pictures. Again, if the poster is taking credit, sure, have the photo removed, but if the mark is left on the photo, and someone put it on FA, again, think of it as free advertising and really think if it is worth the fight.
All of that being said, I believe that the vast majority of complaints have centered around the same poster you mentioned. I don’t think, as a poster on the forums, he has been around in a while, and when he was, he typically complained about FA (again, not taking the time to look up all of the posts, just going off of memory, so I could be wrong). Should be be suspended from FA? No. Be stripped of the rights to post photos? Absolutely.
I am on the other end of the deal. There is a picture out there of the plane I regularly fly in, and is owned by a family member. However, because of the copyright stamp on the picture, I can’t upload it to be used on the aircraft info page. Personally, I think that is crap since it is my family’s aircraft, but, such is life, and it isn’t worth the argument as to if I should be able to use it without the permission of the photographer (which, technically, it is a picture of me since I was in the right seat on the day the photo was taken, but that is neither here nor there).
Basically, to me, it comes down to this. The FA staff (or gurus) put the photos area up because it was a frequently requested feature, and since it is a side part of the main function of FA, it is more for the entertainment of the users than a main business function of FA. Because of that, they may not see the need to police the photo area all the time, but, as shown by mduell, if you happen to see one of your photos by chance, let them know and they will take it down. I would do it in a PM rather than on here, though.
You are right in your frustration with the poster for taking the copyright markings off the photos, but, again, unless it is a primary source of income for you, taking it beyond asking to have it taken down really isn’t worth the fight.