It is useful, I used to search by post if someone mentionned me in an old discussion I forgot about or lost into 100s of posts/pages (most were Alen spamming dumb jokes), but some months back with some vbulletin update that happend, I couldnt search my name by post anymore, just by thread and not in chronogical order, so I gave up. But this makes it more useful to be in the know of mini discussions that are usually lost within insane amount of pages I cant bother to go through.