This post was set up as a test of the scheduled (cron) behaviour of the Mass Page Maker 2.5.1 plugin.
It should be posted at 5:00 PM EST.
UPDATE: It only published after I changed the time in the editor, so clearly I’m missing something important.
UPDATE: The GUID field in the database appears to be the culprit. Version 2.5.2 seems to have brought the plugin up to speed.