At some point, a seller started using our (and other more successful seller's) NAME/S as tags to increase sales (they also sold clothing, just the same stuff as the other stores that they took the names from)!
I found it pathetic, and actually felt sorry for that store, well the person/people in it, behind it. How un-original are you?
Anyways, I told them to take down the tags, and seemingly the other stores did too and he/she/them changed them. sorry if it's off topic, I wasn't try to hijack the convo.
Some other people actually can make the similar item, but didn't figure out the right tag until now. Could be that too...otherwise, annoying if they just copied you, cold hearted.
You need to move on, and make better stuff, better quality, crazier, bigger, more complex or smarter items, that would be harder to follow.
Just an idea:)