What I wanted to say is that there's no reliable, etc. data to prove the (other) claims, which is why I used the plural there:
in particular that "Golf and Obfu are by far the leading candidates for discrediting Perl."
As indicated in the "Which is the Most Popular Golfing Language?"
section in this node
even back in 2009, code golf was more popular in Python than Perl.
The reasons for Python's rise in popularity compared to Perl may make an interesting discussion, but I doubt code golf was a factor.