bbPress.org

Hi
I need your feedback on how to save space with bbpress in bp group forums. What methods do you use?

My ideas so far:

-Have subscribe role & author role keymasters and allow only authors to create forums in their groups. Seems easy to implement with a conditional in the bbpress creation template.

-Set a limit to topic creation, e.g. 100 topics. Is this technically possible?
Otherwise set 100 topics/page and hide the pagination links so only the first page is visible. This will force the group keymaster to always delete some topics so that newer ones can be visible.

-Delete old topics automatically or close automatically inactive topics and then delete them from the site admin dashboard. Any idea how to do that?

-Set a twitter-style limit to the topic & replies, e.g only 300 caracters. Is that possible?

Thanks in advance for your feedback.