Claude Code is steganographically marking requests 22 days ago
Almost all for-profit large internet platform providers you use have anti-bot, anti-scraping, anti-spam, anti-abuse defenses. This is a new thing that is the same, it's anti-distillation, but its a subset of the same space.
If you have a problem with this, you should have a problem with Google, Apple, Microsoft, Amazon, Netflix, etc.
If that's also the case, then no problem.
But what Anthropic is doing here is nothing new.