I don't know if it's me or if other people are having this problem but I just thought I'd give someone a heads up in case it's a problem with the site itself.

I noticed yesterday that I'd read all of the posts in a forum, then I'd leave. I'd come back and it'd say (via the icon) that there are unread posts. I'd go and check them out, but, turns out, I'd already have read them.

Is this something on my end or something tech-y on the site's end?