Do I need title elements on all my forum pages?

[BroDino]

I have a forum that I'm working on and there are a lot of pages that don't need to be found in search. In fact, I'm even thinking of de-indexing some of them such as the following pages:

• Registration
• Login
• Member Cancellation
• Member Billing

There are also a lot of pages that are only viewable to paid members. Do they all need title tags and meta descriptions?

[BroDino]

Crickets.