Someone from Apple here once told that they close millions of accounts daily. How many accounts does Google close? It's unfeasible to expect any company to do a human review at this scale.
Not that I like it, but that's the way it is.
Oh it absolutely is. Yes it would cost money, as do other tasks a company has at hands.
Let's say a human can review the account in about a minute. 8 working hours a day = 480m. 10000000/480 = 20,833 people to review one account per minute 8 hours a day straight.
Now take in consideration that:
* many accounts could not be reviewed in a minute;
* people do not produce 8h of uninterrupted performance;
* there are much, much more accounts to be closed daily.
And the figure quickly approaches 100,000 people online daily, meaning five times as much in human resources, so about half a million.
So, no.
It is not feasible to expect any company to do a human review at this scale.