I decided years ago that instead of hosting a comment section I'd pull in comments from elsewhere: first Facebook (no longer working because of anti-scraping), then Google Plus (which means I didn't lose my g+ discussions when they turned it down), then LessWrong, Reddit, HN, the EA Forum, and Mastodon. Prompted by Daniel, I've now added Bluesky support as well.

It went pretty quickly: there's a public URL you can hit to get the comments on a post as JSON, and fitting that into my existing comment setup was not bad (commit).