So it's March 1st - who lost their status? I didn't yet I didn't earn Platinum last year either so what gives? I last earned it in 2017 - I fell 10 nights short last year in 2018. I thought I'd lose it today.
Same. Status maintained for now. Did you match United Silver before? If so, is it renewed till next year? My guess is we may assume this year's Marriott tier by looking at matched United Silver expiry date (i.e. if it's renewed till 2020, one should stay Titanium till 1/2020).