There will always be inexperienced people who just learned about "cool language X" and go on a crusade everywhere they go about why Y is not written in X with o

There will always be inexperienced people who just learned about "cool language X" and go on a crusade everywhere they go about why Y is not written in X with obvious disregard on how difficult (and often useless?) rewriting a whole project is. I remember seeing a post on a Qt mailing list asking if there were plan to rewrite Qt in Erlang. At least it usually come from a good place and they tend to be polite about it. Better than a lot of open-source freeloader getting angry because B is still not implemented in A ...