@Edent @ncweaver @davidgerard Interesting, but.. having a site implement WebMentions feels much like saying a site has to implement a CDN - how many sites have this enabled by default? I know mine doesn't... I'd be concerned about the '0-day' impact of a bad actor sharing a link with a spoofed, defamatory card - imagine if this happened to a politician, for example. OK, that Mastodon instance would get defederated quite quickly but the damage might already be done.