that's true for all the internet/cloud providers. I'm not sure how you enforce transparency. That's one of the problems with private marketplaces( and service providers) too.

I think they're offering a paid version. which goes along way toward the alignment problem with advertising.

you want to keep making my $40 offer a better bot. The question is do you as a company turn away the opportunity to incorporate ads into the products. (paid for advice)

chatbot as a service is a good business model, but free chatbot with subtle ads is a way bigger opportunity.