I’m not sure... I'm not even American, but RMS came to my city once to give a talk, lived for a few days at a student's house (who volunteered ofc) and apparently it was such a bad experience that rumours of it spread through the whole university - mainly hygiene issues. The host mentioned that he threw away the blankets rather than cleaning them. I didn't experience it personally, but rumours on the internet make me believe it's a relatively common experience...