What I do is go back to my comments and look to see if I received a reply. I am beginning to think if I make an effort in not engaging with their posts anymore and others do the same, maybe they'll get the hint that they're doing it wrong! Less people commenting back and forth means less engagement with one another and more about just posting stuff that you think will get a lot of upvotes. That's not how social media works, not in my opinion.

So when I see those who cannot take the time to reply, I don't give them my upvote or comment. With new people coming on board there's always other content I can give my attention to and my upvote who will appreciate it.