We have fairly stringent community standards on the main site and a lot of nonsense claims and speculations get deleted.
The Meta site has less stringent rules and is open to opinion, so we can discuss those standards.
At least one user has developed an ingenious work-around, using this lowered set of standards as a loop-hole to allow their rejected, poor-quality answers to be published in full - i.e. to ask on Meta why their answer was deleted, and include the entire answer.
In these cases, the goal is not to resolve some question about scope nor to challenge the standards we use. It is apparently merely to vanity-publish their opinions in a place where they are not welcome.
How should such such meta-questions be dealt with?