I have used these on LinkedIn, especially to respond to requests from people I don't know or am not actually connected to -- as the writer notes, it isn't reall

I have used these on LinkedIn, especially to respond to requests from people I don't know or am not actually connected to -- as the writer notes, it isn't really appropriate to actual email from friends and family. Though I suspect all of these are meant for people replying from a phone or watch who don't want to bother typing.