The hosting in it of itself is relatively cheap however with the current attempt by pretty much every major player to outpace one another means they are heavily investing in R&D/ model training, related infrastructure expansion, personnel recruitment/poaching etc. This all makes (to my knowledge all) major model provider run at a net loss despite the huge revenue some have.
I think the only reason stackoverflow still has any activity is because the community choose to ban AI content [1] and so did most of its other networks [2].
Perhaps it will even see a (small) resurgence when AI providers start charging for the actual costs.
A to my knowledge unconfirmed claim by the register states:
"Tseytlin said that some Atlassian customers are completely excluded from metadata or in‑app "data contribution" entirely. This includes those who use customer-managed keys, or bring your own key, Atlassian Government Cloud, or Atlassian Isolated Cloud users. He said Atlassian will also not collect metadata or in-app data from customers with HIPAA compliance requirements or from some government and financial services customers."