If I'm building an ad-supported site, I don't care about users who unconditionally block ads. Those users clearly don't care about the people who make the sites they're using.
Would you rather have clear, readable content or be besieged by advertising ..
On sites target devs you should really expect very high % to be using ad blockers ... I'm yet to meet a single dev that doesn't use it in some form.
(edit: I didn't even realise it was ad supported for that reason .. still think its a good service though )