For some people, said items that disappeared were quite literally worth MILLIONS of gold. Not thousands, MILLIONS, like, ‘enough to get 1000+ days of game-time and still have more gold to spend’.
I’d be absolutely LIVID (and rightfully so!) if that happened to me. I’m one of the ‘lucky’ ones and didn’t lose anything particularly worthwhile, but I still lost quite a bit of stuff from my personal gbank deciding it wanted to empty out the first five tabs for no reason.