Google has a help page that lists types of sites that merit low quality scores.
In the section titled:
Website Types to Advertise with Caution
In the past that part of the page stated:
# Affiliates that do not comply with our affiliate guidelines
Now that section of the page just says:
Affiliates
Now this could just be a typo or something but what is really interesting is the the US version of the page show this new change:
[adwords.google.com...]
While the UK version shows the old wording:
[adwords.google.co.uk...]
The implications are pretty huge to me but again this could be a bunch of nothing just thought I would share what I found.
There's no reason for Google to want to list ads for a thousand affiliates all competing to send people to the exact same offer. So, pretty much as has been the case for the past couple years, you have to be able to add something unique to the offer in order to drive traffic to it with AdWords. Many affiliates don't seem able to do that, unfortunately.