please mods, don't do it.
it'll make dissensus feel like a less warm, less joyous, less friendly place.
it doesn't discourage substantive conversations. there haven't been any less (and may well have been more) proper conversations and posts since the button was introduced.
i don't think there is anyone getting offended at somebody's post being liked.
it's solely a nice thing with no downsides.
I believe you are trying to ingeniously sidestep the main issue here, by conflating the downside of the like button with an individuals personal offence (or lack thereof.)
whether so and so is offended at a post being liked is immaterial to my argument. what i am talking about here is this being used as an unofficial interpersonal power structure. person A liked x post but criticised Y post saying the same thing. therefore person a must have some hostility to person B. The button can encourage this as it's analogous to a swipe on an iPhone screen.
I am not going to cite examples here as this would be airing dirty laundry in public. I would rather people take my argument on its own terms.
as for dissensus being a 'less warm, less joyous, less friendly place' this is up to all of us. the like button hasn't prevented small petty beefs arising. if anything it's created unofficial stratifications on the forum. making somewhere joyous requires effort and sustained, thoughtful, and considered group participation, not approval and conformity. it also requires that sometimes things are left static, that there are periods of low, fairly casual activity that serve as recalibration. expecting the forum to be a constant energy field when we are all fairly knowledgeable about each others eccentricities closes off the forum to new people. it can feel like we are communicating in our own, isolated and closed off language.
But ultimately, in this situation, it is the majority decision that counts. in this situation putting things to a vote seems to be the most ideal option. We will continue to make our respective cases but whatever turns out to be the result we have to respect it out of discipline.