I get what you are saying, but I would still suggest at the moment using the Beserker Helm is not an exploit but utilizing a game mechanic, and for the record I do not do this myself but if I did choose to do so I would not see an issue and do not when other players do this.
For example. When I was a little girl Papa used to say to me 'Angelica be smart in life, and always obey the two rules of business. No1, always maintain your word, keep your integrity, and fulfill every promise you make." Me and my siblings all knew the answer to the second one, but papa would sit there sucking on his pipe and blowing smoke rings until, as the youngest I was expected to ask, 'Papa, what is the second rule." He would smile and say 'Don't make stupid promises you don't want to keep."
Here is a hypothetical scenario for those who say players in lootable pvp should not use the Beserker helm mechanic. If you are uber, and lets say you hit a hypothetical 1 million ped tower in pvp4. Your time to collect is is fast running out, and you have 5 minutes left to TP in, and get out with your loot, and the tower is being camped by other ubers. Maybe your soc friends TP in to distract the campers, and you go in to collect the loot and get out as fast as possible. In that scenario with current mechanics, would the smart thing be to go in at full health knowing you could be looted, or to TP in as fast as you can, with low health, click and collect and even if shot knowing you have secured a very, very big reward. What would be the smart thing to do atm? Would you who complain about current players collecting their loot, honestly say you would not yourself use this mechanic to get your 1 million ped loot? I BET YOU ALL WOULD