NO adsense account is safe, they will find some reason some way, so you better keep using other ways of earning (ad networks as well) or CPA. Also I found that most people have Adsense when they have 100 visitors on all sites, and by the time they reach 100k per day they dont have any adsense account. The Point is save your adsense account for that site in future and don't just put adsense on every other site. Just use it on 1 or 2 main sites for the moment.