For questions that propose a new type of challenge. Your proposal should include an objective scoring criteria, as well as descriptions of why it is distinct from existing genres and why it would be a beneficial genre to have.
This tag should be used on questions that propose a new genre of challenge. New genre proposals should meet the following:
It should not already exist, or be a subset of an existing challenge type.
It should have a single, objective scoring criteria
For example, prettiest-code is an entirely subjective criteria
It should be an interesting challenge type, and should promote quality challenges over a large quantity of challenges
For example, code-trolling attracted multiple low-quality challenges, as opposed to a few high-quality ones.
If you would like to propose the basis of a new genre, rather than jump immediately in with a proposal, check out the sandboxing question where you can post suggestions rather than full proposals.