To improve discussion in the topic/reply thread, it is useful to quote parts of the previous responses as a reference. GD bbPress Toolbox allows you to add Quote button to each topic and reply for that purpose.
Quoted text contains name of the author and link back to the topic or reply where the quote originated. You can quote whole topic/reply content or only selection. Quotes can use standard HTML or BBCodes for markup.
Settings allow you to control where the quote button will be added. It can be in the links area on the top of each reply or topic, or after the reply or topic content. Or both. Quoting can be allowed to some user roles only.