no - by enlarge no member has the direct email address of another member, and thats the way we all like it - the best/only way is to add a comment on the bottom of the article page (I assume you mean this..)
DataGrid Control[
^]
and see if he's around and will strike up a converstation, or if he's posted recently (I dont think so), do an [OT] post
There used to be the ability to private message a member, it may be he sends you an email address for further correspondance.