Given that Perl is famous for using non-perl languages to solve some problems, be it with Inline::C, JavaScript::V8 or even Inline::Python, i don't see a problem with adding raku to the mix.

I'm guessing the same will happen with raku questions as is happening with most of the other questions not directly related to Perl. We'll solve to problem or point to somewhere more appropriate to solve that particular problem... while at the same time some monks are getting curious and start to come up with a pure-perl solution (or a way of packaging that foreign-language solution into a nice module for CPAN).