[jonathanberger]

Unfortunately the statement is not true. One good reason to use short timezone codes like EST, CST, PST is that most people prefer them.

One of the first surprising things you learn after launching a timezone conversion website https://news.ycombinator.com/item?id=1133613 is that one of the top feature requests is to display short timezone codes.

[Spivak]

And people prefer them because I have known since I was like 4 that I'm on Eastern time but have exactly zero idea what my UTC offset is off the top of my head. And also because I observe daylight savings EST changes automatically for me while I have to remember whether I'm in DST to know my UTC offset.