I've read on reddit that the letters have gone to people with $2000 or more total over those years, if anyone sees one for less I'd be curious to know how much

I've read on reddit that the letters have gone to people with $2000 or more total over those years, if anyone sees one for less I'd be curious to know how much it was for. I've bought stuff on Newegg and haven't received a tax letter, but I didn't spend $2000.