I do not see it that way. I say TBN forum users are a generally more mature audience. As a psychology thing, nearly all would be interested to know when another user, particularly a highly respected colleague, agrees with them (or disagrees) before they go on too much about the topic. All of it is statistical and "there are all kinds."
I do not see TBN veering off into a popularity contest atmosphere at all. AND, it's not like we are frozen in space. If that ("agree button") got out of hand, eliminate the mechanism (assuming someone with reasonable judgement, an adult in the room is the overseer.) Might be nice if we had a voting mechanism (which we do not have either) but the need for that is very rare too.