Regarding #Bluesky opening signups, one person on HN comments:
> The account portability is probably the biggest problem with the #fediverse right now.
And while that may be true from an end-user perspective, imho it is not the biggest problem. The fact that for a new dev building an #ActivityPub app is like a Viking trying to discover America is problematic. While #ATProto has the Holland-America line where you can check in for the ride.