Well, I didn't. I actually didn't know english much and didn't know any fansite with translations, so curious enough me and my 2 RL friends created illegal character names.
My first two characters were named:
Rto Ownage (namelocked for nonsensical comination of letters / deleted)
Dbz Es-capixaba (namelocked for nonsensical comination of letters / called 'Ricardo'Lord of Calmera' now)
and my friends:
Mvt Destruktor (namelocked for nonsensical comination of letters / deleted)
Talesbrazil (namelocked due to name referring to country / deleted)
What about you? :)