Negative tag filter Merged

I'm surprised this isn't available and that nobody else has posted this:

When I'm sorting ideas, I want to be able to filter out the ideas with a certain tag. Currently you can only show those ideas that HAVE the tag. But I want to have the option to see all the ones that DON'T HAVE that tag.

To take it a step further, it'd be nice to have advanced options like where you add the tag as normal, but can click certain tags to make them negative filters. i.e. HAS "Tag A" but NOT "Tag B".