Flag trading would be if she had been on your freq, ran off somewhere, hid them, changed freqs, then won with them Flag selling is when one freq (usually a private) on purpose, gives them to another freq. Sometimes money is involved. A freq choosing to defend another freq is in no way illegal, in the same way that flanking isn't. Now, complain about legal things more, but do it elsewhere. Closing the topic to prevent more unwarranted and wrong whining.