Fortunately I don't get many chargebacks, the last one I passed along to the police department since he'd done this once before -- I recognized the email address and each time he uses different cards from different people.
I have, in the past, sent a nice little letter explaining what fraud is, telling them I understand finances may be tight but it's not fair to steal from me, blah blah blah. A few times people have paid
When people sign up up for my paysites and spend a day or two taking content while the processor approves the transaction (in grace period), if it's denied, I email them and tell them what they did was steal from me and I will prosecute, etc.
The last 4 times it's happened I got 2 people to sign up again with the phone billing, and one person sent a money order.
If you put a little pressure on them, people will often cave.
Putting them on mailing lists, spam lists, etc, is harassment and could land you in deep doo doo. Publishing their information on a public website -- in some states -- is illegal as well.
However, you can have them added to several fraud databases that are out there. I belong to several websites for Internet Merchant Fraud that maintain -- and share -- this information.