Just a couple of data points...

I booked a flight for New Year's weekend for my brother and I on the website. He has PreCheck and the booking page took his Known Traveler Number information with no problem. This was with me logged in to my Discount Den account. My birthday has been correct on the booking page throughout this whole ordeal, but like others my correct birthday only now shows in my profile.

Frustratingly, however, my profile page still shows that I'm 20,000 miles away from my next Elite tier. I am 50,000 for the remainder of this year, and have over 21,000 this calendar year towards 2023. Yet my Elite status expires at the end of 2022, according to my profile. If Frontier actually had good, reliable IT I could be convinced that they just mean my current 50,000 Elite status expires then. But they don't, and I can't.

I am really hoping that there is a miles multiplier at some point, but I'm not too hopeful. It would be a nice bit of reciprocity for all of the issues we've faced since the system "maintenance" of last week.