I got in a rabbit hole looking into why md tables weren't formatting in #glitchsoc . Glitch's markdown render, RedCarpet, does allow markdown tables, but Glitch nor does the downline fork (#chuckya ) running my instance enable it. I'm not entirely sure but it looks like the extensions object at https://github.com/glitch-soc/mastodon/blob/8c76a208ed30cc1bd54262302b2aed27ae142509/app/lib/advanced_text_formatter.rb#L106 simply needs to have a property "tables:true" added to make it work. I'll have to open an issue when I finally get past GH's horrible anti-alias policy.
Obviously it's not advertised as working in the docs https://glitch-soc.github.io/docs/features/rich-text/ but it's a common enough extension now that you'd think someone would have opened an issue already requesting it. I oddly couldn't find any even closed related issue tickets.
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