jm i&¿<@VÉGAj²¸f$aÃXÈj¯=÷PuôìLJack said something on twitter that he wants to pay homage to bitcoin by having every paymail start with '1', just like bitcoin addresses do.
https://whatsonchain.com/tx/f7cf93d4371eaaa0ebd8d2cb6f1e357e3c4645873b21cd13965538f51d517ddc