TBQ's law redux
Slight tweaking to TBQ's law, as I've discovered my original wording wasn't nearly bitchy enough to suit me:

TBQ's Law: Anybody who attempts to justify anti-slash comments (eg "All slash is character-bashing." as opposed to "I personally don't like slash.") with the excuse that they know someone who is gay both loses the argument and is reminded that everyone knows someone who is gay so flashing your Queer Cred is redundant.

I also propose:

TBQ's Corollary: Anyone who attemps to defend slash by saying those who don't like slash are clearly homophobic not only loses the argument but is tarred and feathered for making the rest of us look bad.