Where the "reality" of language is a result of brutal culture wars that have given us very unnatural categories ("X means Y+Z except in very specific circumstances K where it means Y+W")?

In that case think its important for thinking clearly to develop your own definitions that group things together into categories where all members share important traits.

Not even! He rejects common language where he has redefined the words, and he rejects specific jargon where it runs contrary to common language.

When he uses the tools of pedantry, he does so to try and change the goalposts of the conversation, not to provide greater clarity.