StackOverflow had this problem, too; various large companies would put "for support, ask on StackOverflow!" style wording in place, with predictable results.
Just a euphemism for "we have no customer support". In fairness, it's a more helpful suggestion than just a customer support stonewall.
Some companies had employees monitor their company's Stack Overflow tag. I think Stripe did that. I probably benefited from that at least a few times, which, in those moments of need, would have been quite helpful.