I'm a non-native English speaker. There are two Perl forums I
participate in that have non-English postings. One forum is
the mailinglist of the largest Perlmongers group in this country.
It does have posts in English and the local language. The monthy
meetings, including the talks, are often in English, sometimes
in the local language, depending on who shows up. We have several
members who don't speak the local language well enough to
participate otherwise, and there's only one person who objects
to using English.
The other forum is the usenet group comp.lang.perl.misc.
Unlike some people think, it's not an English only group (after all,
it's not en.comp.lang.perl.misc, is it?). Every now and
then, there's a post in German, French, Swedish or some other
language. Unfortunally, such posts often get flamed - usually
by some dumb Americans who think the world ends at the US - Canada
border.
Abigail