Okay, at first I was irritated, I thought this was an intentional thing, and I was not pleased to say the least. I’ve talked with a person (thank you Multigun) and found out it’s not a purpose-done thing, but some sort of bug.
Still not happy, but will be, once you can find and put an axe in this bug.
It persisted through a complete wipe of re-install of the game.
Did not occur until these were purchased/installed:
Blood and Sand
Riders of Hyboria
Debaucheries of Derketo
Seekers of the Dawn
Treasures of Turan
The Savage Frontier
Jewel of the West
The Imperial East
Unfortunately I got 'em all at the same time. I’m trying to remove them one at a time and see which one (hopefully I can find it) is causing the issue.
Disabled all listed above, restarted, no more popups!
Added DLC back one by one.
Debaucheries of Derketo started the popups again.
If you need further information, provide any steps that will assist in diagnosing and torching this bug.