Given a theoretical million articles, it makes perfect sense to try and remove the articles which you're least likely to be interested in so you've a higher cha

Given a theoretical million articles, it makes perfect sense to try and remove the articles which you're least likely to be interested in so you've a higher chance of seeing the articles which you will be interested in. You can't brain filter them all, so you will always end up applying some sort of automatic filter which is not context aware.