The advantage of bad perl is that it pretty much is immediately obvious on first sight that it's bad perl. Compare with python, it takes thought and time to identify bad python because it's so syntacticly bland.
With python, write enough of it and you'll be able to spot bad python code just fine. If I don't have Perl muscle memory exercised enough, the same problem telling good and bad Perl code exists too, but it's the other way around — it's all bad until proved otherwise.