Definitely. This is a great post that helps explain to technical folks why Mastodon is not (and will never be) a replacement for Twitter, which I say as a Mastodon user and fan. If something has a chance to displace Twitter, it'll need to be as dead-simple to use (like Hive¹).
> The single thing that's kept me from joining/participating in Mastodon is the lack of clarity around which server I "should" join…
If you're looking for an opinionated answer to this question by someone who's just gone through this, for HN readers I can also recommend the instance mentioned in the article: hachyderm.io. There are a lot of tech and otherwise-interesting people there, and it's run by Kris Nóva². Her most recent articles on Medium talk about running an instance as a serious endeavor.
> …if I join someone else's server, how portable is my content/profile - can I export it all/import it all into my account on another server easily, or is that a lot of work, or even not possible at all?
Kris's most recent post, "Experimenting with Federation and Migrating Accounts"³, goes into detail on how this works in practice.
¹ https://techcrunch.com/2022/11/21/twitter-alternative-hive-j... ² SME in Linux kernel security, distributed systems and infrastructure management, and open-source software engineering. https://medium.com/@kris-nova ³ https://medium.com/@kris-nova/experimenting-with-federation-...