I wonder how they'll figure out who to target for litigation when this license is violated.
Software licenses aren't enforced through litigation as much as they are enforced through the _threat_ of litigation and legal risk. In other words, pretty much every company pays lawyers to minimize legal risk. Those lawyers inevitably look at all the contracts, agreements, and software licenses, and tell the C-suite what to do in order to keep their legal exposure as low as possible. "Don't violate other companies' IP," is pretty low-hanging fruit in those conversations.
It is a very rare (and ballsy, and perhaps incompetent) company that ignores their lawyers' recommendations to adhere to the letter of all of the software licenses they are bound to.
They haven't litigated the last public non-compliance... Despite that one being extremely public. So probably not at all for now.
They have certainly trained in some secret call/response pairs that would uniquely identify Kimi serving.
How many companies host and serve models via API and have a $20M+ revenue? Going to be pretty straightforward to catch offenders.