Someone Won My Giveaway But He Already Own The Game Can I Pick Up Another WInner ?

1 Nosgoth Is Not Free To Play ! And 2 No Its Not The Dlc Its The Base Game !

There's no way to check if a user has that DLC or not

Not sure, to be honest.

I mean, if someone's a Homestuck fan, I might get it, since one of its main characters (Kanaya) Types Like This, but still.

Because They Think That It Makes Them Look Cool And They Want To Get Your Attention This Way. This Is Really Good Way To Annoy Someone Too.

I think its ok to use that for titles (which is why its called the title case)
Title case in normal text is annoying though