In my opinion, yes, the why does in fact matter. This blog post i've linked in other comments in this thread is by one of the authors of the ActivityPub spec. If you care enough to comment about it i recommend reading her analysis of what AT Proto gets right and wrong in comparison with ActivityPub.
but you have to question why they’re choosing to reinvent the wheel
you don't have to wonder why if you take the time to read about why; see the links in my other comments in this thread if you're curious.
Is there any instance other than Bluesky where people can register?
There aren't "instances" in the ActivityPub sense, where "instance" means single point of failure you're married to (its name is literally part of your identity) which is simultaneously responsible for keeping your data available and curating your view of the rest of the network; AT Protocol decomposes these responsibilities so that they can be delegated independently to different operators.
See https://docs.bsky.app/docs/advanced-guides/federation-architecture and https://dustycloud.org/blog/how-decentralized-is-bluesky/ for details.
There are many people running their own Personal Data Servers, AppViews, Labelers, and Feed Generators, but I'm not aware of anybody else running a large-scale Relay yet (which is one of the things this new foundation says they are planning to work on). I'm also not sure if you can actually create a did:plc
using a self-hosted AppView or if maybe you need to use did:web
to create a new identity without using their AppView currently.
They mention ActivityPub in a few places, such as this blog post.
But I'd recommend https://dustycloud.org/blog/how-decentralized-is-bluesky/ instead, which is the best discussion I've seen so far of the pros and cons of each of the two approaches.
have you read about why they didn't?
Any confirmation this is real? The donate button goes to GoFundMe.
- Audrey Tang confirms https://bsky.app/profile/audreyt.org/post/3lfn56wzdf22n
- Bill S. Preston Esq confirms https://bsky.app/profile/alexwinter.com/post/3lfmzjpszsc25
- Vox Media confirms https://www.theverge.com/2025/1/13/24342799/free-our-feeds-social-media-ecosystem-at-protocol-bluesky
username checks out
Having some distrust in Wikipedia is healthy; you certainly shouldn't take it as the final word about facts you're depending on the accuracy of. But, it is very often a good starting point for learning about a new subject.
Spending a minute or two reading that "source code" article (or another version of it which is likely available in your first language) would give you a much better understanding of the concept of source code (which is a prerequisite for understanding what "closed source" means) than any of the answers in this thread so far.
As a leftist myself (communist), I generally enjoy the content and discussions on Lemmy.
i've never had an IG account myself, but i think your mistake is in assuming that someone accepting your follow request on a restricted IG account is an indicator of desire for chatting with strangers. accepting your follow request might just mean they glanced at your profile and assessed that you aren't a spammer or bot, not that they want to chat with you.
for sure that is a good idea 😂
but there are also many places online where it is much more reasonable to assume people are interested in chatting with strangers.