I thought Fakespot was an interesting premise for using LLMs in a vaguely legitimate way, but I did get the sensation that by using it, it would eventually come out years later that it was doing something nefarious, similar to Honey.

My assumption was that it would either teach fake reviews to get much better to be harder to identify...or it'd get sold off to some company that had a vested interest in keeping fake reviews around. I suppose this second possibility could still be the case! :)