And inversely, steer away from (named competition).

If I was Corp A competing with Corp B, what stops me, today, from flooding reddit etc with anti-Corp B material to pollute the model, and then paying OpenAI to not just nudge users towards me but also away from Corp B?

I assume this is what's up with the NordVPN ads flooding YouTube and stuff. No idea who the buyer is, but if I was in the market for a VPN I'd presumedly do a web search, skip NordVPN as having poisoned the well of good will, and choose whoever's next.