Tagging is always not the right thing to do. It's up to the escrow on what he wants to escrow for. If the community really wants to eradicate account sales, then just tell Sebastien Ju that such thing is frowned in the community.
OK, lets do this for everybody then, when you see somebody is doing something untrustworthy and wrong, just tell them that and if they didn't change their behavior then tag them. but I don't think anybody would do that, no they want to bully normal members and always give a free pass to trusted members (especially DT members). DT members here are not in the mood of giving any chance to those people they don't like. how do we know SebastianJu is not going to escrow for account sales anymore? should we just tell him that what he is doing is frowned upon by community and wait to see if he does that again or not?
Let us do that for everybody to show greatness and let them to learn that greatness from us.