.....so the attacks will stop? I mean like put up a notice on the site that only verified accounts are being processed at this time until further notice. Can you do that? And if you can't track down the recent attackers, require all non-verified to become verified to continue to play? I don't see any other way to get them gone. If people don't want to give their CC info to LL, they can make a PayPal or PaybyCash.com account and use that to become verified. It's a way to trace accounts and be able to ban them. To those with Basic accounts, this isn't saying to charge for it but only to have billing info on file someplace safe. That way anyone making, deleting, making, deleting, making, deleting alts to attack the grid can be traced and the accounts linked to that billing info can be banned.
You'll see that it will make SL more successful than ever if you stop unverified accounts.
Make a trial grid for new users to try SL with a sampling of businesses, homes, a club or two, etc. if you want to continue to allow people an easy way to check out SL or like some others said, let them in but strictly limit what they can do in the game until they become verified.
There are other good suggestions in the Feature Suggestons forum /13/1.html .