Can you seriously say that deliberately losing in order to continue playing below your true level in a streamed competition is showing fairness and good sportsmanship? You are correct that there is nowhere in the rules that specifically forbids tanking. However, you cannot cover every circumstance in the rules and the general rule about fair play and good sportsmanship is always in effect. If a deliberate tanking situation comes in front of me in a grievance, I will rule it to be a breach of the fair play and good sportsmanship rule. I don't know if you are still addressing me as I never made any comment with reference to all these points. But my answer is "no", stacking is not cheating. There is nothing wrong with arranging your line-up of players any way you like as long as they are all playing at the correct level. It is deliberately playing at the wrong level (and tanking to avoid a DQ is recognition of the fact that the player is at the wrong level) that is cheating. It is like an 8 handicap golfer entering a tournament playing off 14 - or deliberately filing a false score or deliberately missing putts in order to inflate his handicap artificially so he can stand a better chance in the next tournament.