Most of the transactions in the mempool seem to be quite unimportant, considering the low fees in them.
Who wants to store all those new UTXOs in his RAM and the transactions on his harddrive permanently?
But these transaction definitely cost the users a higher fee since they have to outbid other users in terms of transaction fee in order to be confirmed first. And probably the one in fault here (transaction fee picking) are the miner since they ignore transaction fee that have lower fee and just cherry picking those that have higher fees. I am not complaining about the cost of transferring BTC but rather seen the fault on the miners that ignores transaction that have decent fees.