Hello @Perrorist and @yidi,
We are sorry that you felt misleading. rtMedia have a number of add-ons which enhances it's functionality in many ways for WordPress, BuddyPress, and bbPress.
Here you can find further details regarding bbPress attachment addon - https://rtmedia.io/products/rtmedia-bbpress-attachments/
Kindly let us know if you need any assistance.
Thank you.