Interesting. For Claude Code, this seems to have generous overlap with existing practice of having markdown "guides" listed for access in the CLAUDE.md. Maybe skills can simply make managing such guides more organized and declarative.
You too can win a jackpot by spinning the wheel just like these other anecdotal winners. Pay no attention to your dwindling credits every time you do though.
I have been using claude code to create some and organize them but they can have diminishing return.