They are not supported by GitHub’s GFM, and you are being incredibly bad faith about this fact.
If you are comfortable calling Markdown a futile exercise in avoiding proprietary control of a universal, simple document format for wide interoperability across natural languages, programming languages, and monopoly interests, then you and I are Microsoft vs Sun over Java in the 1990s.
If you are comfortable calling Markdown a futile exercise in avoiding proprietary control of a universal, simple document format for wide interoperability across natural languages, programming languages, and monopoly interests, then you and I are Microsoft vs Sun over Java in the 1990s.