I could be wrong, but it seems like Perl6 may fall into this category, for different reasons.

I'll bite.

What reasons?

Feel free to refer to posts on p6l and p6i as well as status reports from Jesse Vincent, Luke Palmer, and Audrey Tang.

In reply to Re^3: What will the Perl 6 interpreter be written in? by chromatic
in thread What will the Perl 6 interpreter be written in? by ghenry

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