Because we don't care if someone meets Chris. People don't need to come to the forum and make a thread to announce that they met Chris or bought his shit from eBay. At the very least shit like that could go in the Random Chris Updates thread.
I'll agree that just talking to Chris doesn't make them a ween. But someone announcing something so trivial is like unironically making a thread asking what'll happen when Barb dies or what the latest thing Chris has shoved up his ass is. If you're happy you met Chris then that's fine, but don't announce it like it's a big deal.