I am guessing that most of the people who do not like to wash their teaware stayed away today!
The vote actually shocks me.
The only thing that makes me clean the teaware the same day/night is waiting til the next morning would drive me crazy and I would regret it the next day anyway.
I simply HAVE TO clean it the same day of use. This usually means at night after final steepings. I am guessing I do not like doing it at night, but the alternative would mean no soggy leaf tea ... meaning no tea at all ... that night.
At the end of the day though ... I guess I do not mind it too much, but it is my least favorite part of tea.