"IMHO, I have no real objection to small advertising files being part of each page I view - its pretty much a necessary evil - as long as it doesnt consume huge amounts of bandwidth. But I do object to large video stuff, flash etc, so surely surely "Third Party Injectors" have NO place on the web."
Yes. Adverts are not intrinsically bad, but the arms race between the advertisers to be "bigger and better" and more in-your-face than the competition is what has destroyed the experience and lead to ad-blockers, flash blockers, script blockers etc.
Auto-play video ads are the spawn of the devil!!!!!