I did try that with a few websites in the past. So now it's a big fat No. Every time I did do it I got a trojan horse, malware, or got spammed by advertisements.
Honestly it's been getting steadily worse. Adblock doesn't block everything and Opera has a blocker too and neither block everything. It seems people who are making harmful and annoying ads are finding ways to circumvent Adblock. I hope there's a big update to where it completely makes ads invisible again. Would really welcome that change.