Requested feature overview description.
Extending the tagging system to allow artist and/or character owners (in short: suppliers) optionally to define locked tags that can not be changed directly by the community. The community can suggest tag changes which have to be reviewed by the suppliers or e621 team if suppliers doesn't react after a long period. If a suggestion is not accepted it should locked permanently for further community suggestions.

Why would it be useful?
Suppliers have more control how their art work got tagged. Seeing a character got tagged with the wrong gender according to the supplier's lore might be unsatisfying for suppliers. It reduces tagging wars (especially at gender on art work with unclear character's gender) and unhappy suppliers.

Why wouldn't it be useful?
It can create strange combinations where the art work tags, like gender, doesn't match to the community suggested gender. It can actually break the TWYS rule. Trolling suppliers might lock tags which are not approved by the original artist and/or character owners.

What part(s) of the site page(s) are affected?
- TWYS rule
- tagging system