The monster tag is up to 7000 posts, and messier than ever. I think we should do something about it, before it bloats even more.

The tag is frequently used as a catch-all for characters that don't seem to fit into any other category. And monster_girls are currently implicated to it, but humanoid would often be more appropriate. Since monster girls don't always look 'monstrous'.

Even the wiki definition is vague:

A monster is any fictional creature, usually found in legends or horror fiction, that is somewhat hideous and may produce physical harm or mental fear by either its appearance or its actions.

So here's a couple of ideas:

- monster_girl > monster should be unimplicated. That'd allow us to actually clean it up a bit.
- Dragon subtags such as western_dragon and furred_dragon seem to be tagged consistently. Maybe we should add some subtags for monsters? Furred_monster and such? That'd help keep those sorted.

Opinions? Other ideas?

Also, should tentacle_monster be implicated to monster?