I'll write a funny story and include my own art using a comic style. I can't be restricted to one tag, so that's a bad idea.
Some organization is a good idea of course. I would create areas for video, music etc but also leave an area that has all of it. I don't like just choosing one thing. Some people do, and I get that... but I like to stumble across things I never knew I'd be interested in until I found it.
If we started segregating ourselves by regions of the world for instance, I'd feel cut off from all this cool shit I get to see from around the world. I also enjoy seeing my own country get so much exposure whereas most people can only depend on stereotypes or go out and find the information on their own. I enjoy how people from around the world also combine video and music within their stories.
To prevent certain tag abuse, avoid telling people that certain tags have a better chance of receiving rewards than others. I was writing in funny and humor long before anyone said more people should do it and so were a few others.