Is this a collective push right now for LVT ? I got an e-mail this morning from Astral Codex Ten on the same topic - seems like a campaign is a foot.

Twice in one day for a topic as not specific as this seems intentional.

I wouldn't say it's coordinated. This is an old article, published in June. A lot of people came to the land economics blog from the ACX article that ran today, someone likely saw this one and then posted it to HN.

ACX has been on the Georgist tip for awhile.