Also, while they might be a decent option from a player-perspective, Winch Gate does not wish to risk having its account frozen at will, with no explanation, and with very little recourse since Paypal isn't a banking institution and is not subjected to strict banking laws..
Not only from player-perspective, as I mentionend before I had a commercial Paypal account for years. And the worst thing for me as a seller, was the high cost, compared to other payment methods. And yes 1-3 % of PP payments fail for the seller, I had single transactions frozen for countless days, but never the whole account (how to manage that?) and a few times (really rarely) I had to give small/inexpensive goods for free, out of goodwill.
And I agree that it is not a good idea to have lots of money on a PP account, alone for security reasons, better move it to a real bank account asap.