Hello this is Mikesteam2004 a.k.a. Deluxe 4 and I found someone that killed me in the box arena with another weapon! Proof :
They didn't do anything wrong, did they? The rules are listed in the background, and as they both used melee weapons I see no reason for a report. Also the pan is basically just a reskin for the class-specific melee weapons, so the second one doesn't really count. But I'm not an admin, just telling my opinion, so may the admins will think different about this.
Taking the word for all trade admins: The rule(s) concerning the boxing rooms are (as you already pointed out) shown at the wall of the room. It is a 1 vs 1 fight (and now a real 1 vs 1 fight thanks to our awesome coders/mappers!). However if you are not challenging a specific person (e.g Player A wants to duel Player B in a Heavy meele fight in the boxing ring) you are free to choose the class and/or loadout you use. As on the topic, Mikesteam a.k.a Deluxe 4 : If you didn´t clearly challenged these players they are free to use any weapon/class they want. However if you did challenge them and they didn´t listen to the conditions of the fight then they are unfair and you shouldn´t challenge them again. If you still have some questions, feel free to contact a trade admin/admins. Usefull link: Trade Admin list Greetings, Snobgoblin
If you have any problems on the servers, especially if they are minor problems like this one, please contact an admin directly. Do so by either using !calladmin on the server or adding one of the Trade Admins on Steam. As for this report, no rule has been broken. If you are not sure about a rule, feel free to do the aforementioned. Last but not least: If you want to report a player, its recommended to actually record a demo. That way we can judge more easily what has been happening and what actions to take. Also it serves as a more solid piece of evidence.