There is, to my knowledge, no such reason for the problems. There has been no explanation or information forthcoming from PayPal at all, other than a suddenly frozen account (with a few thousand dollars in it) and various bills which need paying and which can't be paid.
Even if I manage to get the account unfrozen fairly quickly (and I'm not holding out on much hope right now), I can't use a service which suddenly and without notice freezes an account and unfreezes it at their leisure. That makes it impossible to conduct the necessary business side of EN World which is needed to keep it running.
The fact that there is no regulatory body makes the whole thing even more precarious. The only avenue for complaint in such a situation is via the courts - and that is a lengthy and expensive endeavour, one which I shouldn't even need to comtemplate using just to be able to use my own money.
Don't get me wrong - I'll muddle through this one, even if I lose that money. I'm operating, for the moment, on the assumption that I won't ever see it. But it could have been worse - and what if it were, next time? What if I one day find myself unable to pay for the server for a couple of months in a row?