I hope they are buying something after they click. Is this a constant for you, or did it just jump up like that out of the blue? Did you make some radical changes to your site?
I have more than this on my 2 websites for months. But most of the clicks comes from US and it's from real organic traffic. So if it's genuine then you don't need to worry at all.
There is no "next time" for him, once you've been banned Adsense is no longer an option. How can you help him, he's banned, do you work for Adsense?
I've had a higher CTR on some of my websites in the past and have not had any issues. Sad to see your account has been banned. Mind sharing details about the source of your traffic? Was your ad placement aggressive? Did you place ads near clickable elements or images? Since adsense only bans the account and not the website, he can always incorporate an LLC and apply for a new adsense account in the name of the LLC. I know of several people who have done this (including Spencer Haws of nichepursuits.com) and have not had any issues.
I'd love to know where you clowns get your bullshit from, show us in the Adsense TOS where it says that.
i would imagine when you have a high CTR like that, adsense start paying more attention to your traffic sources - but there is definitely no TOS rule
Exactly, as long as you get natural organic traffic it doesn't matter what your CTR is, stay within the TOS and you have nothing to worry about.