I have stated this before and usually get positive responses. Traiding can only be done at the end of a Nightfall or a Raid. Traiding can only consist of items that dropped during said Raid/Nightfall 5 min trade window at the END of the activity. EXAMPLE: At the end of Crota anything that dropped during the entire raid can be traded with other members of the fire team. So player A got a chest piece for his Titan that he doesn't need. Player B needs the chest piece and HoC dropped for him these players can "trade" these items since " AS A TEAM " they earned them (really hate the term earned but kinda fitting here) Once players go to orbit or the 5 min window expires trading is over and done. I think "general trading" is a bad idea. But a fireteam should be able to trade rewards. EDIT: I should add PoE to the list as well but maybe only on the 32/34/35 levels.