Worth noting they announced it is something to come rather than something which was immediately implemented.
Some of the YouTube vids for that stuff are extremely cringeworthy. A talking headshot of an MLM-styled guy reading a scrolling salesletter for some coin he gets a commission on for getting you to sign up for. Ads to rent out your spare computing power where you are almost certainly paid less than the amount of electricity they use as they run your computer hot cryptomining, etc.
Also in some other banned categories they have later re-activated them.
Bails bonds recently nuked, just like payday loans were a while back
https://adwords.googleblog.com/2018/05/google-bans-ads-for-bail-bonds-services.html(though payday ads only nuked in certain locations, showing it is a political choice spun as a moral choice, especially when combined with Google's LendUp investment)
recovery ads re-enabled 3 months after they were nuked
https://www.theverge.com/2018/1/13/16887898/google-adwords-pulled-rehab-addition-center-globalhttps://www.theverge.com/2018/4/16/17244192/google-advertising-drug-addiction-treatment-centers-abuseThe binary approach they take in many categories has to be tough for businesses in those categories.
The big issue with banning the ads is they get no revenues while diverting the traffic to organic listings (subsidizing rather than defunding the competing channel). You'd think in categories they ban ads on they'd at some point put some large & ugly graphical sort of PSA at the top of the page to push the results below the fold & to guide users to parallel search queries where the ads are not yet banned.
