Well, if you start issuing tokens & you lock people in a building & require them to pay you tokens to get out, people may trade the tokens. But most things that have served as a MoE with any significance either had value or utility themselves or they were fiat tokens that could be converted to & from dollars or some other thing of value. The convertibility is generally the key to establishing a network & to getting people invested so that the value they are storing in a particular MoE can be harvisted. The entire fiat scam depends on people treating the tokens as a store of value in some form or fashion. Same with shitcoins that promise to be the next big thing. And it's ridiculous to say that shitcoins or even the fiat in most tiny countries qualify as a MoE but bitcoin doesn't when many billions of dollars in bitcoin trade hands every day. I use bitcoin as a MoE all the time. I have never used shitcoins as a MoE nor most fiat currencies.