One of my site has CTR>30% in average this month, page view is not much in a day (less than 30 page views per day) and my earning from that site is not good either. After a few articles "banned/boot from adsense" particulary in this site, should I aware this CTR from the possibility of being banned by google?
i wouldnt worry about it.. they don't email you when your CTR is is 30% less than what it used to be if they are all legit then you will be fine