Taunting rule, hell no.... Never I want to see that thing back in ambrosia under any circumstance. We had enough of complaints in 2010 about it. Even rawr was so angry once he basically removed the whole taunting section or something.
Anywho, greytown has these edges on the cage where ct's can take positions. There is no reason why you'd want to slash the ct unless the concept of killing him and rebelling. And the ct is not baiting you to kill him, he prefers to risk his life for no reason. Even I say multiple times in chat, that most rebellions in greytown happen because one ct thought it's funny or awesome if he just stays there, relatively close to knife range and making the day a mess after he dies and the gun is dropped in the cage.Quite unnecessary if I must say to risk position-wise for life. So, making it complicated for the ct's by restricting parts of the maps is pretty much the most controversial taunting rule.
This obsolesce thing... If you give a command that logically is impossible to do whilst the previous command is in power and activity, you can tell him he is overriding the command and he is breaking the rules. But your example of last and first reaction doesn't hold water, because last and first reaction that involves people staying at the wall(jump,crouch,say that,look there...) can be played until he overrides the command of which requires you to leave the wall(go/move/relocate there). In which he can't shoot you anymore for his primary command. And if he is doing last and first reaction and shooting you for not doing his primary command whilst the last/first reaction is about moving in places can get the ct reported and etc.
About freeday guy in gunroom... I killed you, as I kill anybody that goes in the gunroom because it never exists a reason to go in the gunroom for a t. I never have conducted favoritism or had myself biased to not kill somebody for being in the gunroom. I intentionally don't stay around the gunroom as I don't want to be "laming" for killing threats (freeday guys) easier. In greytown, usually one ct is put outside the gunroom to kill incoming vent guys or nade the vent.
It doesn't make sense to unify everybody to kill people in the gunroom if they want their friendship to be built on trust. If you don't kill a freeday guy that goes in the gunroom it means you trust him. But In my case I don't trust anybody for having a gun and being a threat.