I’m proud that the first “comment” I’ve approved on my site since ~2007 was a WebMention from @adactio. I’ll need a bit more time before WebMentions show up on the front-end of my site. But they will soon.
Follow-up on using Spotifyfor podcasts: They have a very long way to go before they are on par with even the most basic podcast apps. This leads me to believe they will have a standalone, free, podcasting app by year end.