Erik-
To avoid duplicate work, you could say something like
"I copyedit [[User:Engrish]]'s changes"
to your user page and possibly other relevant pages.
There must be some cyberspace law about everyone's English ending up garbled in all discussions that criticize other people's English. This should of course be "add to", not "say to", since the Wikipedia speech interface is still in alpha.
Regards,
Erik