Im thinking about getting into building some MNS for adsense. Not some little 5 article sites but more like 10 to 12 niche articles on niche sites with custom logos and all. My main question is if I start building these sites and have multiple say around 30 or so I've heard horror stories of google just straight up banning your adsense account. I mean if I am creating quality sites does it really matter how many I have? Anyone one with any experience in this matter?