Be wary of Bluesky

Alternatives and Network Effects

• Many commenters say Bluesky is simply “good enough” because their key communities have moved there; network effects matter more than architectural purity.
• Others argue that if you care about decentralization, Mastodon, Nostr, or IndieWeb-style POSSE/PESETAS are better, but acknowledge these lack mainstream critical mass.
• Some note that if Bluesky ever “goes bad,” most users still won’t leave due to network effects, just as with Twitter.

Data Portability and “Credible Exit”

• Supporters emphasize that ATProto lets you migrate your account, posts, and social graph to another PDS, unlike X/Twitter’s essentially non-portable export.
• Critics counter that portability doesn’t fix the default centralization: if 95–99% of users stay on the main PDS/appview, leaving means moving from a metropolis to a backwater.
• There’s debate over whether data export laws meaningfully constrain an acquirer from degrading portability (e.g., by giving data in unusable formats).

How Decentralized Is ATProto?

• One side: Bluesky is “decentralized like email” — open protocols, anyone can run infra, most people won’t, and that’s fine.
• Other side: the did:plc identity layer is a central chokepoint; Bluesky controls most PDSes and keys; private data plans give the company broad visibility.
• Bluesky defenders describe ongoing work: spinning PLC into an independent non‑US nonprofit with consortium governance and read‑only mirrors. Skeptics reply this is still centralized and not fully realized.

Blacksky and Third‑Party Infrastructure

• Some say any serious critique must acknowledge Blacksky as an alternative full ATProto stack and appview, proof that exit is real.
• Others respond that it’s tiny, resource‑intensive infra (large indexes, TB–PB of data) mean few such providers will exist, and most users will never change defaults.

Nostr, Mastodon, and Other Protocols

• Nostr proponents claim it avoids Bluesky’s issues: keypair‑based identity, “dumb” relays, no tokens.
• Pushback: key management is a non‑starter for most, UX is poor, and performance/search are problematic.
• Mastodon is praised for “real” decentralization but criticized for confusing onboarding (“pick a server”) and a culture seen as hostile to commercial or indexing efforts.

Philosophies of Social Media Use

• Some argue social media should be treated as disposable “coffee shops”; if a platform dies or degrades, just move on.
• Others want longer‑term resilience and lower switching costs, seeing Bluesky/ATProto as a pragmatic compromise, even if not maximally decentralized.