Word filter bug???

I don't know why, but it seems that the word "i.n.nocent"(without the periods) is filtered out(atleast in the blogs).

For example, I will type "i.n.nocent" without the periods-
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I don't know if it does it in the forum part, but it does in the blog part.

Is this a bug, or is there some meaning for it?

Thanks,
Okashira

EDIT : yep, it filters it out here too