Umm as far ik nope, as it was introduced to know your seasonal rank in a more easier way as earlier we discord was the only way to check the seasonal rankings and moreover u can check the other two ranks in your profile itself
tbh both of misunderstood each other and calling the other scammer first sort the problem and say who is the scammer and kindly provide proofs if u are sure he is a scammer
exp rates nowadays 1million exp gives u 3million or 3.5million or 4million depends on the seller and buyer but people mostly go with 1millxp for 3.5million pds rate
if 1 pokeball is going for more than 1 million the user must have bought something from the other guy like promo codes or pokemon etc and if an arceus goes for millions it must either have exp or the other user must have bid by a mistake
The problem with u was that u didn't have a strong password which made the other user guess it. Henceforth keep a strong password qso that no one guesses it