I have done simple script to generate 100 addresses bitcoinpaperwallet.com. From these 100 addresses were 24 already used (tx count > 0)
Can you share how you did this? I'd like to reproduce this. I have a crazy idea, but that's for another topic.
Last test, 10000 addresses generated, just to find, who lost potentionally the most because of this scammy website. It was 18zSTXqo1PrPLY3v53LaCqdd6WiXPBaw2c, with almost 4 BTC in february this year. To prove this, I have signed message with the private key of this address.
That guy had been funding his address for a while before it got emptied, and even after it got emptied, he continued funding it (after which it got emptied instantly).