The first thing is to define the term "illegal" which might be different for different law aganecies. As for placing ads, it really depends on what kind of business the advertiser has. If I had a seo service, I will never place it on disney.com, but where it should belong.. bhw..
If you don't like us, tahh tahh! if you do.. come join us..
as for being unethical.. ethics is a big thing which can depend on the people you ask. I have seen BHW from 2008 and let me tell you, it used to be a lot darker than this. Right now, BHW is fully compliant with most of the "big advertisers". Google being a cunt will never allow anyone who games it.. lol who cares? As for the ad type ( cpc? Pay per fuck?) .. it does not matter.. grow up.