Interesting, I figured I received the mail because of joining translation projects.   It seems that it's enough to have made a single edit in both language wikipedias in the last year.

I hope you will do this in both directions for each language pair (both suggestions from FR --> EN and from EN --> FR.)   

On Fri, Jun 26, 2015 at 12:29 AM, Emmanuel Engelhart <kelson@kiwix.org> wrote:
FYI, the Wikipedia in French has an article evaluation program (like on Wikipedia in English) based on wikiprojects, so honestly I think they already know pretty well where are the weakness without the help of a robot: https://fr.wikipedia.org/wiki/Projet:%C3%89valuation/Index

The article eval programs like this one are really good. I agree that's a good source of prioritization of topics  (whether or not a bot is involved; bots are people too).  But this system isn't so good at identifying topics that haven't yet been written.

S