Recently joined the #Fediverse buying on the concept of #activitypub.
Although it is promising, quirks like:
-Viewing content from other #instances, one needs to follow a profile from that instance.
-Explicitly viewing instance content, user needs to sign up on their instance.
dilutes the unique Identity across the activity pub.
Considering all this, the potential it hold is immense if these promises have been worked out in near future.