Nearly all forums that I know, won't allow you to post, unless you are registered.

On TS apparently, anyone can post in the News & Interesting Links, which I think is not correct.
(Some unreg'd poster(s) was/were accused of being too cowardly to register)
I also noticed, that "banned" members can still post, if they like.

Why?

Originally posted by Julio
As was announced a few days ago, unregistered users can now post news comments, we encourage all of you to participate in our daily tech discussions.
Just a quick note... (http://www.techspot.com/vb/showthread.php?s=&threadid=13340)

They can only post in the frontpage news area.

Banned users obviously can not post... unregistered can post news comments only and so far it's seemed to be a good move.

Unregistered posters is by design the News forum, I believe.

We'll get more responses if readers don't have to jump through hoops to sign up. :)