Hi, my request will be useful especially for people using non-English bbPress versions.
There are some permalinks which are not translateable or changeable in bbPress. For example, in WordPress, we can change the slug of the permalinks for “category”.
I think it will be very appropriate if that kind of property is added to bbPress. These are some of that slugs:
topic, profile, forum, view, no-replies, untagged, tags, replies
(By the way, can we change these slugs by any hack?)