I wasn't annoyed or inconvenienced into using an adblocker, I started using one because some kind of World of Tanks ad would run on YouTube videos as a banner along the bottom and it pushed the video out of view. I kept hiding it and telling it that I didn't want to see that ad anymore, but it kept playing. After being unable to watch videos for a couple of days I caved in and installed ABP.
If it were annoyance alone, I probably would have installed a blocker when that stupid, awful Chili's ad played every time I went to any website ever. I didn't even know what it was an ad for because it had nothing to do with the restaurant and we don't have any of them in Winnipeg so the solitary picture of a chili at the end didn't help.
WHO BROKE THE COPIER-COPIER-COPIER-COPIER-COPIERRRRRRRRRRR
F*** that ad with a rake. And f*** Chili's for making me watch it 200 times.
EDIT: It wasn't until around 3 years later I took a road trip with friends and I saw a Chili's for the first time. The logo alone (which as I said above is the only thing I could glean from the ad) resurfaced so much raw hatred that I literally screamed when I saw it.