Artificial scarcity (invites) and VC funding

Forgive my ramblings, but here's the main differences I see, from a community perspective:

Bluesky's for people who loved twitter circa 2015
Mastodon's for people who loved the format but hated the way the platform made use of it. The community is FOSS-focused and anti-corporate.
Bluesky folks are anti-corporate, but they still want their social media to be on a single platform and tend to dislike federation
Mastodon folks tend to be in smaller circles and more tech enthused

Features-wise, Mastodon kills the algorithm in favour of chronological timelines and lists, while Bluesky embraces algorithms, allowing people to even make their own algorithms for the platform. Bluesky's AT Proto uses "DIDs" to identify users, which are associated directly with a domain^[or subdomain]. This means that when federation does eventually happen, usernames will just be @my.domain.com instead of ActivityPub's @actor@my.domain.com.

Federation's still not enabled so I have no clue how things will look and feel on that front, nor am I familiar enough with the protocol to make any claim about how versatile it is. ActivityPub is flexible enough to be a Twitter clone, a reddit clone, a blogging platform, a youtube clone, a twitch clone, a goodreads clone, or several other formats. AT Proto's currently only proven to work for a Twitter clone.

You can just click Follow and start following someone. You don’t have to perform a copy-paste dance to bring the username back to your instance and do the following there.

An advertising budget

A place where normies can feel at home, knowing that they won’t feel out of place not having a fursona or favourite Linux distribution and won’t be scolded for not using alt text or some inadvertent picoaggression. Also, the promise of clout.

Not a lot. Simpler signup flow and ecosystem, more twitter-like timeline and features, better discoverability and some communities that aren’t on Mastodon. FOSS diehards can mince about it all they want and blame idiot users, but the simple fact is people who don't live and breathe technology still have lots to offer a social network, and Mastodon continues to alienate them in design and in community. Lemmy does too.

I like Mastodon and Lemmy, a lot. I prefer them to the alternatives. But I just signed up for BlueSky and I’m enjoying it a lot even routed through the Mastodon bridge, simply because there are more diverse communities there, whereas my Mastodon feed is 90% tech and dev people despite spending hours and hours hunting for people I used to follow on Twitter. Getting big App.net flashbacks.

Like many cases of "success" lately. A well connected and rich parent.

Easier sign up. On BlueSky you can just sign up for an account and go. You don't have to worry about picking an instance or anything like on Mastodon, which can be a bit off-putting for someone not familiar with federation.

A megalomaniac owner

I like Mastodon and the Fediverse, I really do, but I just can't deny that all the good posters that made Twitter enjoyable moved to Bluesky. My Mastodon feed is nothing but journalists, activists, developers, but very little fun shitposting.

Look, on Mastodon you have to pick a server. That's just too hard to do.

That's why email never took off.

• No HOA complaining that you didn’t CW a picture with eye contact or food or alcohol or matter
• More witty people from X
• No drama about who is defederating with who

Bluesky is to Mastodon & ActivityPub, what Matrix is to XMPP/IRC... a completely over-engineered system, ignoring all well established international standards and run by a for-profit entity with venture capital funding.

Feeds/timelines are first-class citizens in the AT protocol and are decoupled from account hosting.

On Mastodon, your timelines are computed by the same server that hosts your data. Consequently, signing up to a server to have an account on the fediverse is the same thing as joining a community. You follow the servers rules and share the same local timeline as everyone else on that server.

On Bluesky, feeds are arbitrary, fungible and provided by any server, and it can be computed/curated/moderated however they like. So communities are "built" around feeds rather than around account hosting providers.

The AT protocol also has "real" account portability (though I have not seen this demonstrated in practice https://atproto.com/guides/overview#account-portability). On Mastodon, account "portability" is a delicate dance that requires the cooperation of both the origin and destination server.

Mastodon has something that Bluesky currently doesn't: real federation. The Bluesky server that everyone signs up to doesn't federate with anyone else, since the whole protocol is still a work-in-progress.

Users.

Tho I agree with all the comments I have to say the general vibe of bluesky is more playful and fun compared to mastadon, perhaps its just my bias. But just like lemmy generally feels like a nice place to be so does bluesky- the vibe feels inviting.

A cult leader in Jack Dorsey

I hate gatekeeping so much, but what I'm about to say is going to contradict that statement so much I should probably stop typing and start this post again....

Anywhoo....

If a troglodyte can't figure out how to sign up for the fediverse, then they should stick to CorpoChat

An artificial scarcity model which gets people excited over the chance to join diet twitter.

Hype & mainstream celebrities?

People just join it thinking it's Jack Dorsey's next twitter.

An invite-only strategy straight out of the early 2000s

dril

It creates that "one big chatroom" vibe from old twitter, while Mastodon feels like a bunch of people microblogging next to each other