Yeah, good point. I often find myself wanting to follow what some people are up to (friends or not), and it's always frustrating how it requires you to be a part of a certain platform to do that – you can't follow anyone's instagram, facebook, twitter etc without an account, and even then you still need to go on instagram/facebook/twitter to actually check it out.

I recently created myself a Pixelfed (a federated instagram, basically) and was pleasantly surprised how my profile has a plain, old RSS feed, so that anyone can "track" me without ever visiting a website (which is something that ActivityPub itself also allows, but AP still forces you to be a part of the "system", so to say).

I'd much prefer that kind of Federated world, but I don't see how we can get there in any other way than spreading awareness about it and basically nagging our friends (at the risk of isolating ourselves) – “I wish I could follow your adventures and thoughts, but I don't want a facebook account”. This of course requires a critical mass for basically each person, and probably a way of automatically updating the locked-in platforms (for each post you push to pixelfed/blog it updates your instagram/facebook) so that the ones who take a step out don't need to leave their locked-in friends behind.