There’s different types of terrible characters names, and so many stupid categories. These are the types of stupid names as I see it.

12 Year Old Tough Guy
These are the names a young child might mistake for tough:

KillerKiller25
AceViperSnake
TerrorShooter
AwesomeWinTheBest312
LightningOfDarkness

Lazy Names
Then there’s people who don’t care about names, but the game won’t let them continue till they put text in the box:

asdfasdf
llolololol
pppppppppp

Overcomplicated “Logos”
Then there’s people who put way to much effort into what is supposed to be just a name.

..xxBARO—NESSxx..
*S*T*A*R* -I-N-V-A-D-E-R- 2000
***.,-/ Spider \-,..,-/ Man \-,..,-/ From \-,..,-/ Space \-,.***

Fantasy Names
Then there’s fantasy players who forgot that grammar itself can never be fiction. Though sometimes these are actually ‘Lazy names’ masquerading as those with thought behind them.

Elu’el’et’tix’rabal
shaleanoerealealaelical
trxpklnikrbm

Confidence Issues
Some players have confidence issues, they don’t want to be blamed for doing anything wrong, so they name their character in such a way that they’re always saying “told you so” when they screw up. That way, they never did anything wrong, the just lived up to their name. IT’S FAILPROOF. Speaking of fail:

FailAtThis
ISuckAtMyGuy
DontKnowWhatThisButtonDoes
HasNoSkill