Triggering interest would be nice, but mostly I was asking out of my own interest, already triggered. Much like other subjects (including politics), I find it interesting to read the perspectives of those who hold opinions different from my own. How do the Rubists "hear" the opinions of the Perl folks who've visited? How do they view those same features themselves? With enough discussion, sometimes it's even possible to trace opinions back to the core values that support them. That is interesting—more interesting than Ruby is to me, and probably more interesting than Perl is to a Rubist.
