Are adblockers like Adblock or uBlock bad?

Quote from Goodbye adblock - Hello Ublock:

instavcc said:

Don't want to be "that guy" but don't you get those shitty ads all over your screen with 100 popups, a video, minigame and dialog boxes in them when you browse shady websites? Eg. torrents (pirated), porn, cracked software, etc.

If a website is good I don't see the problem in letting the ads appear no matter where...

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Are adblockers like Adblock or uBlock bad?

by Jeff via TBN