Oh yes its mostly all users with fresh emails and phone numbers. Experiencing this problem and yes I have seen some people trying to make their second account but most people have very little incentive to do this, and the evidence is all there in the @penguinpablo article @ackza posted after this, and in this "Daily Steem Stats" report you can see how the rates for new user registration drop from almost 9000 one day to around 400 a week later and then a day after that 21,000+ Accounts were al approved all at once!
It really does seem like someone just went on vacation at steemit inc :D The account creation or approval process is just a manual process and since steemit inc doesn't need a large staff, and since most users who had delays were ready to wait, I suppose it is not that big of a problem yet but I do believe this sort of behavior COULD lead to a very sad stunted growth for this social media platform, which COULD happen but probably won't. It is just so much safer to make sure new users being on-boarded is a top priority or what are you even doing really? If you're trying to run a social media website and by definition that means competing with facebook's 3 billion userbase or capturing it, then you have to put the on boarding of new users and scalability as first priority, but maybe not! Maybe steems tech is powerful enough on its own to attract as many people as steemit inc needs whenever they need