I think OCC ought to have a "Repost" button similar to the "Thanks" button.
If you open a thread and have seen the pics before, you hit the "repost" button to let the poster know that this has already been posted at OCC.
Of course I am not really serious. But I recall over at another forum I use to visit sometimes, people would post and then often, you'd see, like, ten replies, all saying "rp" and nothing else.
the problem is though, of course, that what is a repost to you can still be fresh to others, and this set in particular I had almost completely forgotten about. The best pics and series out there are almost always reposts. And in fact, if something HASN'T been posted here at least three or four times, its probably not grade "A" material to begin with.....
So probably we'll keep on doing what seems to work best - you just reply with a link to the other thread. Nothing else needs to be said. It gets the point across and it really is helpful for people to know what is new and what isn't.
KLondike