Currently, people who report a bug for Kleopatra (via Help->Report Bug...) end up on https://bugs.kde.org. In many cases this is the wrong address. I've closed quite a few reports about issues with GpgOL at bugs.kde.org with the comment "Gpg4win is not released by KDE but by g10 Code GmbH. Additionally, the Outlook add-in isn't even developed by KDE. You need to submit your bug report at dev.gnupg.org."
Since reporting bugs at dev.gnupg.org is prohibitively painful (for good reasons, but still sad), I thought about redirecting Gpg4win users to https://forum.gnupg.org/. @ebo proposed https://www.gpg4win.org/community.html.