Honestly the onboarding for a lot of alternatives to various to popular platforms/apps (Matrix, Mastodon, etc) seems to be the biggest impediment to more adoption of those platforms and apps.

By onboarding here I mean the communities that use those platforms recruiting others to join them and help build communities up.

Like goddamn if that users comment was the first time I’d heard of Matrix it would have turned me away for sure.

Not to mention Mastodon having a reputation that proceeds it.