no you are wrong. You can see every post with 200 + posts. It just doesn't mention it. I can see everything.
The only thing you are not allowed to see is ppl's profiles, but who cares?
I think the hidden posts must be changed to 200. 250 is toooooo much for something that is not sure
btw it does increase the success of enchanting, I am sure that I wasn't just lucky during the 15 minutes I was trying it :P