Re: Facebook is paid for by advertisers.
"If you choose not to use Facebook you don't know who's advertising on it so you don't know whose products to avoid so as not to fund it."
Many people use adblockers with facebook, and that number is growing daily. These people don't even know ads exist on facebook. MeDearOldMum included. (No, I didn't install the adblockers; she got irritated at the useless advertising and found them for herself. I'm absolutely certain she's not the only techno-can't to have figured it out. Worse (at least for facebook), she showed all her friends at church how to make the ads go away.)
Methinks the ubiquitous advertising model is on the path to extinction.