Re: Plugins Folder – How to?
https://bbpress.org/documentation/customization/
Q “Where do I put my plugins and custom templates?”
A “Plugins should go in a directory called my-plugins/ and every theme you upload should go into a separate subdirectory with a directory called my-templates/. Both of these directories should be in bbPress’ root directory (that is, the directory with bbPress’ config.php file in it).