[dlowe]

I don't know the official policy, but anecdotally, I won with an entry that used libperl back in 2000: http://www.ioccc.org/years.html#2000_dlowe

[Natsu]

I love this bit of history from the hint :)

Aside: history... Larry Wall wrote the original Perl in 1986-87, the same two successive years he won the IOCCC. I hope this program helps you to realize that this was no fluke - that Perl and Obfuscation are as inseparable as, say, camels and humps.

[wtracy]

The fact that it won for "worst abuse of the rules" doesn't help your point much. :-)