We do all the threads about WebmasterWorld in this forum. I trimmed some info here that wasn't entirely accurate.
People can get a log in prompt if: a) they live on a high abuse ip. Some have included the big cable companies. b) a thread was intentionally marked members only. c) a thread in a private forum. d) security reasons.
So, we do from time-to-time require certain isps to login. It affects less than 2% of the millions of uniques we see a month.
[edited by: Hawkgirl at 4:44 pm (utc) on Aug. 29, 2004]