Users flagged it (I'm not sure why) and then the author reposted it using a different account. Normally we would unkill such a comment when we review the flags, since I didn't notice anything flaggable about it either, but we're not going to do that when there's a duplicate.

Here's a tip: general explanations like 'is drawing attention to the "attention economy" taboo here' are basically never the answer. It's almost always something much more mundane. You could also know the answer to your question by using HN search to find any of countless threads that discuss these questions extensively. Even "attention economy", though that isn't one of the more common phrases, shows up quite a bit: https://hn.algolia.com/?query=%22attention%20economy%22&sort....