Add I understand it, the real meaning of that line is not exactly what it sounds like. It meant something like "in this anonymous place, only your thoughts matter, not your identity." If an idea was good, it was good, and it didn't matter who had the idea. Very egalitarian.

Of course, we have since realized that isn't really true. Sometimes it's important to know if a thought is coming from a woman, who has had different experience from a man.

Still an idea that need to be left behind, but not the one you probably think.