Personally I like it when people and/or companies announce they've switched from service (architecture, etc) A to service B and then give a good account of why they made that decision, how they then established themselves on B, etc. Reading such articles helps broaden my knowledge about both A and B. Seeing responses to such articles on places like HN helps me deepen that knowledge.

I've seen Medium post links on various social media, clicked on them and read the articles (or got the paywall nag thing), but I never went beyond the articles to investigate what Medium itself was all about. Now - thanks to this article, and the comments it's generated on HN - I know everything I want to know about Medium, alongside some useful pointers for possible tools to set up my own static-site blog.

"Don't announce; just flounce" is often good advice for people who want the world to know what they're up to, just because they think they're important. But I'm happy to see people ignore that advice if they offer me a compelling backstory to go alongside their announcement.