OpinionDimming (graying out) read/older comments by checking a checkbox beside the latest comment you read is a good idea.
      – Korinthian, 2008-09-03 at 20:23:15   (1 comment)

On 2008-09-03 at 20:28:28, Lee J Haywood wrote...
I'm not planning to waste database state storing every comment that you've marked as read. Just read through and mark the topics as read, then move on. Or did you mean something completely different?