No it doesn't... Almost immediately the thread becomes mucked up with random id requests, and the responses and bumps lose track of where they are pointing to...
here's my reasoning:
Looking at a list of pictures, I can tell which ones i recognize pretty quick. Looking at a list of "hot blond!", or "big tits" I'd have to open each one to even find out if i know her.
In a thread, anyone who posts is gonna see at least some of the pics in the thread.
I'm guessing most people who are looking for someone aren't interested in anybody else's search. If everybody's in the same thread, everybody will see at least some pictures, and if they recognize the person they might even reply with info.
I thought as long as I'm a newcomer, already requesting something from the community from the start, I'd try to make the place a bit better if I can.
But I'm new here, so I don't have a good understanding of what really does work and what doesn't.