One difference is dishes don't feel anything, so they can tolerate being washed at much higher temperatures and for longer durations of time. And perhaps clean water feels better? Who knows.
Some communities have downvoting disabled, but as an alternative to downvoting, you can also just not upvote the comment or report it if it actually breaks rules. I don't think being rude in the comments is against the rules, but it isn't nice, so I usually just ignore those comments.
I had no idea, I thought it was the reverse. Thanks!