I do not like that memo.cash stores your wallet password in cleartext in your local storage. Instead some token should be generated server-side and used instead. This token is then validated on each server call.
Like this memo to participate in 100 000 sat giveaway. Winner announcing: 2018.06.28 21:00UTC (or later). f145d7c7c96c1bfddcec092f156da0839880306f98e2e03e5bbddb68ae402f78