>acebook could also go the hostile route - when they detect an ad blocker, just display a blank overlay saying that you can't use Facebook with an ad blocker en

>acebook could also go the hostile route - when they detect an ad blocker, just display a blank overlay saying that you can't use Facebook with an ad blocker enabled. They could, but ad blockers could respond by downloading the ads and simply not displaying them. They probably don't do this right now because it's wasteful (one of the reasons to block ads is to save your bandwidth and increase your loading time by not wasting time downloading the ads), but it can certainly be a last resort, especially if it's only certain sites that do it as the ad-blockers can resort to this behavior only for those sites. The only way I see for them to prevent ad-blocking altogether is to mark every image as an ad, even if it isn't one. I'm not sure how legal that would be. It wouldn't completely prevent ad-blocking, but it'd make it somewhat pointless to view an image-oriented site.