Janestreet is now known for shady trading in India and its aggressive AI trading strategies:
https://www.bloomberg.com/news/articles/2026-06-04/jane-stre...
In other words, it is an AI booster. Abusing the goodwill of programmers for their OCaml involvement even though most of it was convoluted bloat and inferior to INRIA code is devious.
It happens all the time now and people need to inoculate themselves against it:
A single famous open source person or an open source involved company invested in AI suddenly posts "organic" testimonies in favor of AI. It means nothing. The person is not the same person, the company is not the same company (or is now overtly evil).