One should be a little sceptical when interpreting the numbers on that page.
First off, it only shows those that play server-hosted games, and then only those that are hosted through vassalengine.org. One can set-up ones own server.
The page also doesn’t show peer-to-peer sessions, nor does it show hotseat or Play by EMail (PBEM) sessions. That is, there’s some dark numbers.
Secondly, the count next to each module is sometimes misleading, because a user may set-up a room (or even multiple rooms), but never be joined by other players.
Thirdly, there are modules that show up on that page which are nowhere to be found in the Game Library - or some with names written in Kanji or Chinesee traditional.
I think @Jim_Hunter’s advice:
seems reasonable. You’ve already invested time into those, so why not leverage that? 
Yours,
Christian