The email announcing it from the mailing list said not to talk about it publicly until today; it was supposed to be an early backer pre-sale type deal yesterday, with a price of $205 instead of $256. Instead, it sold out entirely hours in, before the actual sale started...

All things considered, that's a pretty awesome problem to have.

They specifically asked for it to not be publicly posted until this morning; yesterday was mailing-list-members-only. See also this subthread: https://news.ycombinator.com/item?id=11997925

That doesn't seem to be a good reason for it to be flagged.

Those with flagging powers can flag for any reason they like. Apparently there are a number of urbit true believers on HN.

Read the thread from [1]:

"Please don't tweet [the sale] or post publicly until 9am PDT on the 29th. But feel free to share privately with friends."

[1]: https://news.ycombinator.com/item?id=11998051

The sale was initially announced only via email to those who subscribed to a specific list, and the announcement included a request to keep it quiet until 9pm PDT (midnight Eastern).

The sale was supposed to be on the down-low until today. I suspect someone flagged it for that reason.

The stars sold out before it was announced outside the mailing list.