This!

And there are even so many ways to achieve this, but the most obvious one is a better way to search through tags. As in they should be available from EVERY SINGLE page, not just from your home button and they should work as categories for you to browse through.

Then these categories should have sub-categories.

For example: I'm doing gaming reviews.. so I would put my main tag as gaming and that would then have an option for ... lets say 3 - 5 subtags to be put on it

So I would do a review of lets say DOOM, it would get main tag "gaming" and I would then put subtags "review" "fps" "doom" on it

and the rest of the so called main tags could even be left alone, but you would only have access to subtags for your first main tag.