This business about the X reminds me of the following story. A poor yid once had no job, and somebody got him an interview to be the Shamash in the shul in Minsk which at least paid a few pennies. He did well on the interview, until it was discovered that he was illiterate and couldn’t read or write a word.
He had no choice, but to move his family to the USA to try to find work. He opened up a businesss, and slowly it started to grow. After a while it became very successful. He became extremely wealthy. One day, he was at a bank, where he was working on a 10 million dollar business deal with the officers there. When it came time to sign, he wrote an X on the dotted line. When they asked him what it meant, he embarrassingly confessed that he couldn’t read or write.
The bank’s officer said in astonishment, if you’re so successful now, imagine what you could have become if you could read and write. The yid replied, if I could write, I’d be the shamash in Minsk.