Bad behaviour is everywhere.
Zope users reacted badly to the news that Perl users would soon be able to use Perl in place of Python within Zope. Linux kernel weenies now have their knickers in a knot . ESR, realising the power that Python provides, rewrote the kernel configuration code in Python. Kernel weenies now say they'll rewrite the code in C because they will have no stinking Python code on their boxen. It all sounds to me as though too many programmers have a lot of growing up to do.