For me it is when companies/services market themselves as donating to XYZ cause if I buy their product. If they want to donate, they should have already done that with the money they have. Asking me to give them profit so that they can donate is so obviously pretentious.
Yep, I want marketing to not exist. If your product or service is good then its reputation will stand on its own and spread via word of mouth. Billboards and ads should be criminal as they ruin our scenery and waste our time