Here's an article that was posted in that Reddit thread that explains what The Atlantic was doing on Reddit: http://www.dailydot.com/society/atlantic-slaterhearst-jared-...
I'm curious what's actually undesirable about this? After reading that article, it seems like * An employee of The Atlantic consistently submits their content to Reddit * Those submissions are genuinely popular with Reddit users Isn't this beneficial for both The Atlantic and Reddit?
I'm not saying I agree with it, or that I think banning the entire domain makes sense, but that's my understanding of it.