I have also had that moral dilemma.
Here is what you do:
1. You use them, make a lot of money, as .01% will probably buy something.
After that you will never sell anything again unless you change your name
Webmasters don't like this shit!!
2. You do nothing with the addresses, keep a lot of enemies away, stay in this business at least a little longer, but you have to do more/work harder to make some cash.
Do whatever suits you.
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Paulus...
Megageil.tv
NaughtyCelebs.co.uk