>>tagoll+(OP)
I think the problem is that people, even smart people, lack critical thinking skills or don't apply them. It's not the scale that makes the nuanced communication not work, it's the scale that makes you notice it. You could have the same communications with smaller groups and you'd have the same results, you just wouldn't be as likely to get negative feedback indicating it.
It's also ironic to me that someone would try nuanced communication on Twitter, a platform whose very design discourages it. You can't do nuanced communication in 280 characters, but you can do vitriol just fine. So they do the tweet storm which turns off anyone who isn't incredibly interested in what you're saying.