brerrabbit, I may have misread the post... but "Removing negative feedback from sellers is why I bought an item from someone that has a bad record of selling in the first place " seemed to me to be saying "Why I bought from this seller - because he/she has a bad record and I saw negative feedback disappearing so I bought to give negative feedback."

But you're right - it could mean rather that the poster was saying "I feel that I was misled and that negative feedback for this seller has been removed and this is why I didn't realise that the seller was a bad seller, and I've since seen my own negative feedback removed."