I have rated webmastermoney forum on top because it doesn't have any rude admin who may not be able to face some arguments and straightway ask you to leave the forum. Even the spammers are forgiven and sincere members are rewarded suitably.
Last time my payment was delayed as webmoney had somehow missed to make the payment. So I had to remind about it. But in turn the admin paid me $3 more as bonus for my patience as I had continued posting regularly.