Im not a fan of ambiguity. From that perspective, allowing account sales on the one hand, and red tagging them on the other seems to me like an unnecessary contradiction. It would be conceptually much clearer if those two elements were aligned: Either allow sells and dont red tag them until some wrongdoing has been performed with the accounts at hand, or dont allow them and give red-tagging all the legitimacy when it becomes highly suspected (with prove that, ultimately, should/could lead to the accounts being banned).
Currently, it seems like a baited situation, which brings no benefit to anyone.