I can empathize, but am also wondering if some of these are feature requests in disguise. For “how to call api” docs, sample code, and even client libraries can be generated from your OpenAPI specs. Link to the docs in every reply. The more complex asks could be translated “build this endpoint and charge me for it”. If all else fails, set up partnership with devs who want to fix/build customers crap and figure out some copy to direct the more complex asks to them.