Musk-era X — 2022-2026 key events
Twitter→X transformation has been one of the biggest internet corporate events in past 3 years: (1) 2022-10-27 Musk completed $44B acquisition, immediately fired 75% of staff; (2) 2022-11 blue checkmark (verified) shifted from 'identity verification' to 'subscription product', Twitter Blue at $8/month; (3) 2023-04-12 revoked most legacy verified marks, only paid users keep; (4) 2023-07-23 renamed to X, domain x.com replaced twitter.com (old links 301 redirect); (5) 2024-04 integrated Grok (xAI's conversational AI), exclusive to Premium+; (6) 2024-08 Brazil STF Justice de Moraes blocked X nationally + fined for refusing to hand over account info, 40 days later both sides mediated and lifted ban; (7) 2025 Q1 ad revenue est. recovered to ~70% of pre-acquisition (Musk-driven environment seen as right-leaning lost some advertisers, but rebounded during 2024 US election cycle).
4 hard-blocked countries and historical temporary blocks
X's current hard blocks: (1) China — GFW has fully blocked twitter.com since 2009-06, triggered by political censorship after Xinjiang 2009 riots, continues to date, post-rename x.com is also blocked; (2) Iran — government blocked during 2009 Green Revolution, briefly unblocked 2022 but re-blocked after Mahsa Amini incident; (3) North Korea — nationwide internet block, ordinary citizens can't access; (4) Russia — Roskomnadzor throttled + blocked after 2022-03 Ukraine invasion, currently VPN-only access. Historical temporary blocks (lifted): Brazil 2024-08 (40 days), Pakistan 2024-02 (2 weeks during election), Turkey multiple short throttles 2014/2017/2023, Nigeria 2021-06 to 2022-01 (total 7 months), India 2021-02-04 brief throttle. AF3 marks current state — Brazil / Pakistan / Nigeria / India are not in BLOCKED_REGIONS.
Premium three tiers — blue check, Grok, creator revenue
X's current subscription structure: (1) X Premium Basic $3/month — blue check + 30-min edit window + reduced ads (not full) + long-form (>280 chars); (2) X Premium $8/month — above all + 50% ad reduction + creator revenue share + Grok AI basic; (3) X Premium+ $16/month — fully ad-free + Grok advanced (newer model + image/video generation) + priority visibility + 100k-char long-form. Annual plans 10% off. Regional price gap is large — India Premium ₹457 (~$5.5, 1/3 cheaper than US), South Africa R150 (~$8 par), Eurozone €9.6 (slightly above US), Turkey ₺160 (~$5). Cross-region subscription is common practice. X Premium+'s core appeal is Grok integration — slightly cheaper than ChatGPT Plus / Claude Pro (both $20), but usable only inside X.
Community Notes — X's new content moderation model
Community Notes is X's flagship Musk-era decentralized fact-check mechanism (inherited from Twitter-era Birdwatch experiment launched 2021-01): (1) Any user registered 6+ months, recently active, with OK reputation can join Notes Contributors; (2) Write a note with source links when seeing potentially misleading tweet; (3) Other contributors vote 'Helpful / Not Helpful' — requires contributors with divergent viewpoints to all rate helpful for note to publicly display under original tweet; (4) Algorithm is called Bridging-Based — intentionally requires cross-viewpoint consensus to prevent single-group suppression. Pros: decentralized, Musk can't directly intervene; Cons: slow (high-controversy events may take 24-72h to surface a Note), misses timeliness. AF3 doesn't directly probe Community Notes (only shows after login), but it's a core X experience component. Meta announced 2025-01 it would adopt a similar mechanism.
AF3 node strategy and China users' standard setup
X's 3-star strictness is VPN-friendly: (1) Datacenter IPs work 80% of the time, but captcha trigger rate is higher (especially during cross-region login, rapid-fire posting); (2) quality_vpn passes ~100%; (3) New account registration risk — X's anti-bot strengthened markedly 2024, accounts registered with cheap SMSactivate numbers often die within 24h, recommend real phone + reputable IP. Standard China-user setup: (1) Global VPN with US/JP/HK nodes — US most stable, JP/HK better for latency-sensitive (livestream comments); (2) Mobile App is delisted from Chinese App Store, iOS users must switch to US/HK Apple ID; (3) For sign-up, prefer Google login or Apple Sign-in over phone (avoids +86 risk-control); (4) Watch out for 'Tweet rate limit' — X sometimes flags high-frequency access as 'rate limit exceeded', usually a shared VPN IP triggered by multiple users, switch nodes.