The fact that ads are one of two types of content for which people regularly install blockers (with porn coming second) speaks volumes about how useful they really are.
You're both right. Some people hate ads. Some people find ads (usually well-targeted ads) helpful for discovering new things that could help them. Different people find different things helpful / intolerable.
You're both right. Some people hate ads. Some people find ads (usually well-targeted ads) helpful for discovering new things that could help them. Different people find different things helpful / intolerable.