Quoting myself from the private TB forum:
"I don't have a problem with registered/log-in. And if you do a search in the public forum, this was discussed previously in a long thread. Also, the 180/180. So current & new TB members might want to read the discussions in both the private & public TB forums. IIRC it was a hot button topic, & had a lot of pro/con on both sides.
I was supportive of log-in then & would be supportive of it now.
I don't think it's a hardship to be registered/logged in, and eliminates the alledged elitism of the 180/180/keeping newbies out because, like the walking through snow 20 miles with no shoes story, it seems that everyone knows one newbie who posted something valuable in MR."
Cheers.