Adam, on the topic of credit cards, do you think it would make sense to have a couple of "sub-forums" for certain topics with multiple threads? They do it on this forum for example:
https://www.flyertalk.com/forum/mileage-run-deals-372/
There's quite a few credit card threads (those listed in the previous post + a few others), so perhaps a sub-forum for credit card might be useful. Same for a sub-forum for all the numerous threads related the MLL, MLL construction, MLL Access, Cafes, etc.? Perhaps I am dumb, but I always struggle to find the correct lounge threads which is sometimes on page 3-4.
I am not sure if that would work ... just thinking out loud.

Maybe worth trying out with a specific topic like credit card as a proof of concept??