TRC10 token does not need to consume energy because of free bandwidth. Every day there are tens of thousands of transfer memo with fake news, scam links. Serious impact on TRON ecology.
And there is currently no good solution to distinguish normal memo from fake memo.
Maybe we can modify the resource model to fix this, the consumption of resources can be a fixed burning of 1TRX for transfers with memo, similar to the consumption of 1trx for multi-signature transactions.