I think it would be funny to change my name to something with a number in it. I wouldn’t want something l33t like "H1ll." Rather, I’d prefer something that is well-known word that happens to have a number in it like CAT5 or Internet2.
If I was an old man named Benjamin Mako Internet2 half a century from now, I could tell young people that I was the inventor of Internet2, that the project was named after me, and that the fact that it was in some ways similar to the first Internet was really just a coincidence.
That may sound pretty implausible but coming from a guy whose last name is Internet2, I think some people would buy it.