Look, you are right.
It is a red flag though. And as I pointed out to him, there are many anecdotes speaking of porn causing harm. He ignored all the red flags and went with the usual line of “it’s perfectly normal in moderation”, which I’m arguing is the wrong attitude to have given the issues that many people have from porn (or in proximity to porn).
Your engagement is valuable for current or future shareholders of the company owning the platform. It is of paramount importance that you engage as much as possible. Although not enough, we would recommend for example, sleeping 7 hours instead of 8 to make time for engagement such liking/disliking and commenting.