I wonder why, after the scam came out, you have shutdown my account so that I had to ask for a password change and pincode change? And why you did not mention the problems with paying out on your website? Or why you did not stop the pool when you found out people were not getting paid?
I'm pretty sure you just used a different pincode and password than you normally did. Why would they just make you go through an extra step if it was going to work anyway? Also, my pass and pin still work perfectly. Your second and third questions are legitimate. I'd guess they might have thought that they could fix it.
Yes of course, I used a different password and pincode and forgot all about them, because that is what I do when I am mining coins. And that is what other people that were mining there did too, forget their password and pincode, so that they also had to retreive another password and pincode.