I have had an account there for 4 years, and we recently hired a marketing firm to fine tune our keywords, so that may have had something to do with it, but I would what would cause them to cancel a $100K/year account.
Muffler bearings: see "left-handed monkey wrench".
Amazingly, Google has only *2* results for "cookie spidering" (with quotes), and they aren't relevant.
You'd think you could use Google to find a definition for a term that Google uses when canceling an account...
That's against G's rules. So have fun suing the company you hired for the future lost profit.
On a serious note, it's scary how arbitrary their decisions are, not just with Adwords, but with everything.
- no changes were made to our pages, only the AdWords account (we learned this mistake awhile ago)
- I did a search for "cookie spidering" and found nothing but two unrelated entries too
- I have filled out the AdWords support form 4-5 times, and only received one response saying it was being investigated. I asked for a status update and got no response.
- I called yesterday and was told I have no account rep and that they would call me back after looking into the issue. (yeah sure)
So, that is all I know...