From a combatting misinformation perspective:
If we're drafting rules here, I'd like to suggest a rule that the original article URL should be the one used for the post, even if it's to a paywalled source. It helps immensely in vetting sources without first having to click into an obfuscated archive link. I'm all for sidestepping paywalls, but I think it would be beneficial to have the archive link in the post body instead.
Part of my media literacy protocol is establishing that the source is trustworthy, and it gets annoying / tedious clicking into an archive link only to find out the source is "Jimbob's REEL TRUTH NEWZ".
I'm also on the fence about linking to YouTube (and similar) videos as news sources.