1) The sense of entitlement they feel - "I should have a right to telephone you at any time, or to mail you junk, or to interrupt your viewing, or to scrape your email address from somewhere and email you garbage, or to use obnoxious loud music or other weird techniques."
2) The destruction of the WWW as a useful source of information, moving instead to really foul pointless content farms or link farms or other weird useless broken sites. Or to sites that are just massive collections of everything, but with no concept of curation. I don't want (eg) every different spectacles case ever made anywhere in the world available from one website - because most of them really are pretty similar. I want a nicely chosen list of twenty different cases.
3) The fear of most sites to let go of advertisers and to just let me pay for the content.