FlyerTalk has a long history of sketchy advertisements that hijack the user's browser. It's clear the owners don't really care, or they'd find better ad providers, that might (or might not) be slightly less profitable. Google Chrome Android can no longer load FlyerTalk due to the current batch of ads, so that's less hits FlyerTalk is getting... I'm not so sure they'd lose money even if the revenue per ad was a bit lower elsewhere...