TMMA member here. I would imagine most orgs, like ours, primarily operate out of their discord server and thus the need for dedicated multi thread forums for each org is no longer necessary.

Audit every org to check their activity, what their purpose is and if they’re really contributing to the community or not. If a dead org doesn’t respond within a month - delete them. The remaining orgs can be moved to existing subforums that they relate to.
For example TMMA is very much focused on competitive skill development so we could fit under tutorials.
Other orgs can probably fit into art, marketing, or replay making.
I'm not sure what to do with the language dedicated orgs.

Thats my take on it.
-----
Overall I do agree that the toribash forum should be cut down.

Also random question: I always wondered why the Z in Organizations is Russian?