@Felthry probably because it's next to the @ on a US keyboard and not used for anything else
because it's a feature pioneered by users, who can only define data
plus remember that Twitter used to be a SMS service, that's influenced a lot of how it works
@noiob I can't remember things we never knew in the first place!
@Felthry well, now you know! you can still use it via SMS in some countries though you'll obviously have the old character limit because that's the SMS character limit
@noiob why specifically # anyway, and again, why are we not separating data and metadata