Due to downvotes, I guess I better explain what I mean: Basically, EC2 provides instances where "if you restart your server you lose your data". You don't use those when that would be a problem for you, you use EBS backed instances which do not have this problem. Or you do it some other way. Point being, this is technically true but it's not really a problem in practice.
The double taxation reference refers to it being a somewhat common misconception among people that have taken a business class before that US corporations are "double taxed". IE, corporate profits are taxed, then your personal income is taxed. This is technically true but does not actually matter because you pay yourself a salary (which is taxed as income), but this is deducted as an expense from corporate income (thus not double taxed).
Point being--it's the same FUD.