For those unaware, there's an old Meta question that did the same thing for Python:
http://meta.codereview.stackexchange.com/questions/491/python-common-improvements
It received a historical lock specifically because it didn't belong on Meta in the first place (doesn't pertain to the site itself), but it was also too valuable to delete. It's also too old to migrate, so if it should be added to this collection, it would have to be recreated on the main site in some way.
That's the main reason why I've recommended against keeping these entries on Meta. Another reason is that syntax-highlighting won't work on Meta, as it was demonstrated in the above question when it was originally tagged as python to hopefully acquire the proper highlighting.