Whelp, I see what everyone means about the NinjaCentral admins.
Got my account, logged in and navigated the website at least once every two or three days to get a lay of the land before doing anything with it, still got deleted. At least I assume that's what happened.
Huh. That was not clear on the page at the time, which I cannot see now. I’m positive it said non-VIP accounts needed to be logged in and navigated at least once every 14 days to stay valid, but oh well. Thanks for the explanation.