Wouldn't mind something like this, but I think this is at least the second separate thread complaining about the keyboard thread, so...
What would probably be easier and would also help with other threads which don't interest one personally, would be a second button next to the "go to first unread post button" on the new content page, which uses some JS script magic to mark that thread as read, like the identical looking buttons on the forum main page which mark entire subforums as read.