Just throwing it out there but does the ID that isn't selling much have less feedback score?

If it does then it's the situation that I'm in meaning the accounts that have the lowest feedback are the ones that are either not selling as much as my higher accounts or they are selling for way less than the others,and I sell the same items.

So to me it just shows a pattern of that good old saying the rich get richer,IMO I have always said that the more sales you have had then the more you will keep selling even though a buyer can get it cheaper elsewhere.

But to answer your question,I don't think there would be any retaliation,they're all in it to make money.