They could've simply cut the usage limits, removed K3 from the plan, added a weekly cap, and called it "fair usage." Anthropic has been running that playbook for a while now, and they're a trillion-dollar company.

To be honest, they have both 5 hour caps, weekly caps and also monthly caps:

  Total usage
  12.85%
  Resets in 2026-08-17
  
  5-hour usage
  71.97%
  Resets in 07-20 03:14
  
  7-day usage
  31.29%
  Resets in 07-24 10:14