I'm glad you're finally doing this!
I think you missed a few content descriptors, like:
- Alcohol/Tobacco reference/usage (kinda fits in with drug reference/usage)
- Blood/gore (kinda separate from violence?)
- Horror themes (for scary games)
It might also be a good idea to have users come up with their own content descriptors and explain their content in depth. E.G: if the creator selects "Alcohol Usage," they could write "contains a scene with two adults responsibly consuming alcohol."
Also, alcohol should be separate from drugs, since those two have different connotations .
Those are my thoughts. I'd like to know what you all think!