Just got hit by a spam bot - Wakaba and Kareha support board

Just got hit by a spam bot (18)

Heh, it seems the bot also revealed a bug with Kareha's link formatting.

[url=http://test]My homepage[/url]
<a href="http://test">My homepage</a>

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Name:	Link: Leave these fields empty (spam trap): More options...
Verification:
Formatting:	Always use this formatting