Consumer chatbots must be toxic in the limit.
Enterprise allows a small market to be funded, but a consumer product, to be VC funded, needs hyper engagement and/or scale.
Hyper-engagement requires toxic, engaging-ourselves-to-death kind of behavior.
Antisocial things are ones where, if it were adopted by a ton of people for a lot of things, it would not be something you'd be proud of.
A ceiling that you should stop at, but probably won't, because all of society (your investors, your users) will be whispering in your ear, "MORE."