With E3 coming, I feel like there definitely should be a new tag: Leak.
I'm sure a lot of us don't want to see leaks before the intended reveal, just like there are plenty of people who do want to see the leaks... The filtering feature works great to have everyone only see the articles they want, but there's one flaw: There is no real way to filter out leaks. They won't be tagged as rumors (because they're not) and you can't always filter out based on title either, because RMC can sometimes get a bit creative with the title. For example:
"Japan Expo Twitter tweets about <unannounced game> and then deletes the tweet."
There's no way to predict a title like this to filter it out. If we had a "Leak" tag (and if RMC were to use it), then people like me can still use this site without any fear of leaks (and rumors) so we can still have some surprises for E3, because I think one already got spoiled for me now.
And be mindful of me and like-minded people; don't start talking about <announced game> here. For now I only know it exists. I don't need to know even more than that