Considering the price,it is worth it for those who are finding it extremely difficult to move over to Jr member rank and participate in bounties,the CM privilege circumvents most of those restrictions for them and it comes at a fairly cheap rate

But for others with a higher rank and need not to bypass any restrictions,it could be seen as a former of donation(though theymos said the forum needs no money) and it could also be seen as acquiring another rank to theirs etc