My read indicator has always been screwed, no matter what device or PC I'm on.
Most of the time, if I read a few threads and close the window, then come back, all the threads are still unread. But, if I read a few and close the window and come back several hours later, EVERY thread from before is marked as read, whether I read it or not.
I have to use the "Mark Forums As Read" link to get consistent results.
Pretty annoying and the only complaint I have about the site.
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