For example, if I clicked on different tags then all the questions that would pop up would have those tags. Like if I clicked Gen 8 and OU on the RMT then I would see only Gen 8 OU teams. Sometimes when I want to answer something on the RMT, I, of course, only want to answer RMTs in formats that I'm familiar with (like Gen 8 OU). But if I click on the OU tag, then I see all OU teams, regardless of the generation. If I could also filter by another tag I would be able to specify that I only wanted to see Gen 8 OU teams, or Gen 6 Doubles Teams, or Gen 7 LC teams, etc.
On another note, it would be useful to clean up some of the tags on the RMT, such as the "improvements" tag, "suggestions" tag, and the quite useless "rate-my-team" tag.
