>Linux users are probably the worst target market for advertisers.
Yes but not for the reason you are imagining. I can think of a few things in common between everyone I've ever known to use Linux for personal use and general consumerism to improve quality of life is not one of them.
That is exactly what I was thinking. I suspect the algorithms in the real time bidding engines put anybody with Linux in their browser signature in a very cheap ad category. The market researches probably concluded that these people continue using $200 computers for years and try to repair things instead of buying new wherever possible.
I'm confident that debian users are tend to be a programmer compared to average PC user. Programmers are richer compared to average so won't they buy things more? (though ads are a bit less effective for programmers)
Yes but not for the reason you are imagining. I can think of a few things in common between everyone I've ever known to use Linux for personal use and general consumerism to improve quality of life is not one of them.