i love blog spot because it easy and free platform of money making. Risk is always connected with your business baby.
I'm also using adsense in my blog but never tried to spamming people to click on my site. This way my blogs are safe and i've 21 blogs running still now nothing is get banned from google.
my suggestion to all of the people is please do not blogspot you never know when your blog might get closed and all your hard work would get ruined indeed try using self hosted wordpress blog and please make sure to keep you back up i know its bore but if you dont do it and lose website you will have to start all over again