If people are worried about the "D" word (deprecated) then initially phrase it as "Looking for Windows maintainers".  An example message:

"Looking for Windows maintainers:

Currently Geany has nobody to concentrate on the Windows version. We are all Linux hackers, we need someone to focus on making the Geany experience on windows comparable with the Linux one.  Geany is a Glib/GTK based program and is mostly portable with small parts of the code specific to the windows version.  These need some love.

Must be able to code in C on windows with the GNU toolchain and preferably be familiar with the GTK toolkit.

Also provide user support on the ML, and IRC on an as available basis.

Apply to devel list."