LB: Everyone should adblock nowadays. If advertisers don't want adblockers then they should fix the problems in their networks.
If a website won't load because you've got an adblock then hit the bricks.
Also if you run your own network and have a home server/pi handy, then you should use this too: https://pi-hole.net/
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Honestly network-wide adblocking is part of the minimum for network security IMO.
@renbymon I feel that enterprise-level solutions should have some sort of blocklist functionality. pfSense has pfBlockerNG, but Meraki for example doesn't have anything similar.