I personally use very little "helpful" addons. Most addons I use is just to make my screen look pretty and cause I forget to bring out my pet I use one for that. ^_^
I saw AVR. In order to go on a raid once it was required I downloaded it. I immediately disliked it. I pay blizzard to play this game, why would I pay to not play it now? That's kind of how I see it. I immediately deleted the addon and I'll never use it.
I understand why some people defend the addon.
"For people who don't raid, it helps them gain the knowledge of raiding"
"Some people just are not as good as others so they need the help"
But I don't see it as help I see it has hindrance. If you have something telling you what to do, you're not really learning, just avoiding to learn. They become dependent on this addon, and if it wasn't there, I don't think they would be as good.
Kind of like math and a calculator.
If I use the calculator to do all my math for me, how will I ever learn what 2+2 is?
But that's just my personal opinion. ^_^