Shadowbanned, seemed excessive to me. I vouched for it at least.
I agree with the comment that Amazon is fucking nasty, but I don't think a comment just stating that is adding a lot to the conversation. More well thought out comments are usually more interesting, so I'd downvote it myself for that, even though I do agree with the sentiment.
I agree, though I don't agree with the shadowban (if I'm right about that).
Looking back over their comment history, I do think a shadowban is appropriate. There are lots of inflammatory and mean comments, and very little actual contribution.