Thanks gerikg, I had found that plugin but my client is insisting on setting it up so that users only need 1 account, must be logged in to post and can choose whether to post anonymously or not. So the bb-anonymous-posting plugin doesn’t fit the bill in this case.
There used to be a mod for this exact feature on phpBB2 but it no longer works on phpBB3. I’m keen to move away from phpBB anyway. I’m also hoping to avoid the vBulletin if at all possible.
We do have some budget available if anyone would like to take this on??? I would imagine there might be quite a few takers for a feature like this.