Aloha Ates, Maybe try to tell user_123 to trade sim and see if the algorithm keeps going after them; I bet they even know where user_123's sim stops are
Try to have someone explain the breakdown of a wash sale, an actual CPA can't even explain what they are so inagine trying to understand general market structure as a whole.
It's perfectly legal. Once you are targeted take care not to dollar cost average unless your account is deep pocket. The more you buy the more they can sell. Think back to the 2008 flash crash.