I'm just smiling at how different we all are, and also how great these forums are that we can have all these kinds of discussions and get our own information needs met.
I cannot even really imagine, truth be told, caring one tiny iota if my chamois is stained in any way, as long as whatever stained it has been more or less washed away before my next ride.
Also, all my chamois are grey...never seen white ones!
"The best rides are the ones where you bite off much more than you can chew, and live through it." ~ Doug Bradbury