I do too and it literally saved me not an hour ago. Why does Google publish guidelines on what is and isn't acceptable on their ad network when they don't fucking enforce any of them? They might not be distributing malware directly, but they're (IMV knowingly) allowing it to continue.
It's cheaper to write a set of guidelines and not enforce them than to enforce them, which might actually reduce revenue. The incentives for them are such that it's better for them not to enforce their own guidelines.
If Google was getting fined say $1000 per offending ad impression, they'd clean up their act really quickly. As it is currently, they don't have a real incentive to do so.
