I joined Twitter in 2008; two years after the service was released, but long before it reached the peak of its popularity.
As my surname is “Magalhães,” but my friends from other countries had difficulty writing “ã”, I chose the username “luis_MAGA.”
This worked very well until 2016. That year, I began to notice that I could not see some tweets. I had been blocked by several people – people who had never interacted with me.
People who decided to block me because of four letters, without ever bothering to learn anything else about me, to read what I wrote. It never occurred to them that these four letters could be part of my name.
Writing 160 characters per message is an acceptable practice. But if you’re going to draw conclusions about people, it might be worth reading a little more than 4.