I work at a company whose revenue primarily comes from advertisements; it feels unethical to run an adblocker while ads are paying my salary. (And also would blind me to the experience that most users have; even ignoring the nice connectivity and ram that I have)
I have to applaud you for the second point. With many pages I see nowadays just googling for things like Vim-keybindings (I am sadly not allowed to install an ad blocker on some systems), I started to heavily doubt that anyone maintaining those sites has seen them through a user's eyes.
