he quoted and replied to about 10 persons. How was it possible to use AI to reply to the 10 different posts. It will be more time consuming and the results would probably be very much unconnected with the ongoing conversation. So, I don't think the allegation of using AI generated words is true. Although, it will be funny if it's true.
This realization (that is it is more time-consuming and requires more effort) is not obvious to someone who has not put any effort into improving his comprehension skills. Generally, people think that the whole point of thinking is to stop thinking later on, they do not like the continuous process of engaging in an intellectual discourse simply because they lack passion. So they try to follow a result-oriented process no matter how boring/time-consuming/laborious.
And believe me, people like OP will go miles uphill just to avoid the annoying
process of thinking.