I can confirm that the issue continues in 2.6.1.
Bumping this. I have the same problem. I am using the latest activity version of the main forums page.
Once a user opens a forum, he or she is allowed to create a new topic.
Screen shot
I have been looking for similar functionality and found https://usestrict.net/product/bbpress-notify-no-spam-digests/. This is a paid option and I have not tried it, so I can’t vouch for it.