I like to go to the "new posts" tab and look at what's new.
Sometimes there are days when people go through and sell a bunch of stuff, or it is a thread I've read and don't care to go back in to and it takes up half a page or so.
Could there be a feature added where you can just click some boxes and have them marked as read?
Yeah, I could stop being lazy and spend five minutes by viewing the thread and going back, but why not have a button if you can?