Well, one must keep in mind that just because Black Ice looks different than White Ice, it doesn't make it any more dangerous.
Also, one must remember how hard it is for Black Ice to survive, what with the authorities trying to destroy it with the snowplows and the salt trucks, but Black Ice perseveres!
Because Zun referred to her as such in the HFIFS character select screen.
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Addendum: Also, I agree with the sentiment that intentionally misspelled English words, done by a native English speaker for the sake of a meme, should not get the Engrish tag.
Seems like the whole thing's blown over already but from what little I know "engrish" has almost always been for actual typos and uh 'unintentional' mistakes.
Though in that case it'd still be easier to put everything under engrish I guess since we're supposed to tag what we see and not what we know and memes themselves are pretty contextual.