The LLM crawlers are in the same league as spammers. They cause the service operators (and, by extension, the society) to devote massive resources to fight the scourge. Resources that could otherwise be used for something productive.

If making the source code public attracts this kind of parasites, I'm concerned about the long-term viability of open source.

https://sourcehut.org/blog/2025-04-15-you-cannot-have-our-users-data/