ok so adding those few if statements into the leveling code now you have to make sure said if statements don't interrupt any other line of code in 2.x, 3.X, 4.X along with ensuring said leveling problem fixes do not interfere with any other leveling system in the game including fates/dungeons/levequests/guildhests/roulettes/PvP/Potd/HoH/Eureka/Blu as they either change amount exp is gained or have their own exp system that you must not interfere with imagine this blu exp exploit in eureka for elemental exp so yes i would find going through 3 expansions worth of code and their side content to make sure 2 lines of code work without incident a nightmare but if you feel it takes 5 mins give said solution+money+time to SE i am sure they would love it