it's monthly :) $240M revenue companies will absolutely find a way to fork $1M if they need to. Kimi most likely sees the eyeballs of free advertising as more profitable in the grander scheme of things
they definitely won't be held liable per their contract nor handle the verification for you, but they do provide a system (a ticketing systems really) with a set of workflows that help put an identity verification system in place.
It's nothing magic, but it definitely helps the privacy lawyers and DPOs who will end up bothering you with verifying all the data and providing it if needed.