I just find ActivityPub kind of confusing. It works for Mastodon because that's user-centric, and most people only have an account on one site. But the same communities can exist on multiple sites, and it's confusing to navigate all of that.
This sounds like someone who hasn't even tried. These instances aren't difficult to navigate, they're just setup a little differently. It's like refusing to go to another country because they use metric instead of imperial (or vice versa).
Madison_rogue
theinspectorst