I'd agree with 90%, the part about members adapting to the forum doesn't fit with me though.
Being one who doesn't like change, I understand what you're saying. All of us have a choice, and can leave TBN any time we wish, but more often than not, we simply adapt to changes, as long as those changes aren't too radical.
Take the new TBN forum design for example. Some people like it, some people hate it, and others are somewhere in between. As a result, the Admins are making changes to adapt the new TBN forum design to better suit it's members, but not all of those changes will suit everyone. Some members may leave, but most members (myself included) will probably adapt.
A forum must adapt to it's members, and the members must adapt to the forum. It's a cycle of change which isn't always easy, but like it or not, it's a necessary evil.
In hindsight, perhaps I should have used different wording in the part about forums and members adapting. The word "must" makes it sound so definite, when in reality it's only likely or probable.