All your feedback was from scammers. When someone is banned, I now delete all feedback they gave to others. This is only in affect for scammers that constantly make new accounts. So if someone was a member for 1 year and had a lot of feedback, I would not delete theres. However someone with a 1 month old account that has 5 feedbacks then was banned for scamming, I would delete all 5 of the feedbacks they gave to others.
The reason is because there was recently a group or individual of scammers that had many accounts, with different IPs trading feedback between accounts. We'd catch a few accounts, they would make more and use the accounts not banned to give themselves more feedback. You cannot give feedback until you receive one so in order to combat this, all feedback from scammers is now deleted.
Your post begs the question of how you had 3 positive feedbacks from 3 separate scammers and didn't get scammed? Your account was actually one of the accounts I already investigated but didn't find anything I could ban you on. Now someone is claiming you scammed them, so this does not look good for you.