The thing on Dirty PCBs here made me laugh so hard.
"Why are you so flippant?
This site was intended for friends and not the public. We'll process your boards, but because most services are offered at-cost we have very little appetite for demanding or difficult people. We really don't care if you want to take your business somewhere else, and it's not worth our time to deal with stupid questions or asshats. Paypal fee reversals, annoying emails and the like will get you banned from the site. It's like Mitch Altman says, don't work with people you don't like."
https://dirtypcbs.com/about