Go to your cancelled trades. Find a cancelled trade from right before you got that feedback. That's the guy - what likely happened is you never put your ads on vacation, so someone responded to one of your ads and then got upset when you never logged on.
There weren't any canceled trades any time before that bad feedback. It makes no sense at all. I don't even remember ever creating an ad around or near that time frame.
How can they leave feedback without opening a trade first? And you need an ad to open trade, either theirs or yours.
It has to be someone who opened a trade who knows how long ago and decided to blackmail me. First he posted pay me .1 btc for making me lose money to address and i will delete this. Then LBC made him change it, so he just changed it to costed me $.
The funny thing is, there was not a single trade opened by me or by another within 20 days of that post. And it couldn't have been the last several ppl i've dealt with, because they were all honorable/reputable ppl.