If coworkers are unhappy with it, they can (and should) make guidelines for acceptable syntax. This is no different than using camel case in Java instead of snake case (or using the $ in identifiers, which is extremely rare). If it's a problem to use it in my code on Github, you can always use somebody else's code or fork mine to change it. Maybe we should use the compiler to force every line to have a comment so we don't have any undocumented code on Github too?