At the bottom of the "About Geany" page it says:

To contact all of us for general questions or feedback, please use the address <team (at) geany (dot) org>. This address will forward your email to all of us.

I think it would make more sense to refer people to the mailing list, IRC, and/or Github for support questions and feedback, and to use team@ for non-support related stuff, if that makes sense.