it would be nice to see the mempool empty of JPEGs only because it is pushed aside by real transaction. filtering transactions by [insert metric here] is a never ending debate that will lead nowhere. it is actually an implicit admission that bitcoin has failed as a payment network.
let the mempool flow, it is a stress test that is needed, if you ever expect bitcoin to be the global settlement network, you should expect a UTXO set 100x larger, full blocks and a huge mempool.
it is very important to know whether people should continue to hold bitcoin or buy a farm instead.