If they wanted the community to have lower fees, they could simply reduce withdrawal fees.
Correct.
Their current withdrawal fee for real bitcoin is 0.0005 BTC.
Below is the last withdrawal they processed.
https://www.blockchain.com/btc/tx/5d9581fda56163472b4f78bc1de9828d19a48f8aa88bba5b8edbfb48dddbf4dbThe fee they paid to miners is 0.00357 BTC and there are 100 outputs.
The fee they got from users is 0.05 BTC. This is 14 times the fee they paid to miners.
The withdrawal fee could be 0.0000357 instead of 0.0005 BTC.