Quoting the Tip of the Day "The GnuCash developers are easy to contact." GnuCash has several mailing lists;
User List <gnucash-user@gnucash.org> - User questions and discussions. The developers and many very helpful users "hang-out" here.
Development List <gnucash-devel@gnucash.org> - In-depth questions and where and how you can help.
You can chat live with the developers on IRC! Join them on #gnucash at irc.gnome.org. Much more at the GnuCash web site including links to WIKI and Bugzilla !!