Unfortunately the IPO ended about a month ago. There is currently a public auditing of the Stakeholder List to weed out large multi-accounters. People on the waiting list will be used to bring the overall stakeholder number up to ~3000 people after this process is over.
I saw the list and there is a group which is accounts which has just posted once for the stake and has not been used. Those stakes can be recycled for newer members.
A whole lot of those single-posters could well be sockpuppets, but a lot could also be genuine stakeholders who purely made an account to join NEM. The fact of the matter is there often is no reliable way to tell; it'd be extremely unfair to remove the stakes from those who have done nothing wrong. This is what the public auditing is trying to address.
I was under the impression the waiting list would have more stringent rules regarding new accounts?