I just signed up using another email account so I can test things using a unprivileged account.
Some parts of the sign up process are good (e.g. the email welcome from Rufus)
but after confirming my email account the first forum page I am sent to was…
I think it would be nice to land on the Categories page rather than the Top page… things would look more organised for a first time visitor.
I agree with @Stephen for the page for a first time visitor. The Categories page would be better for first time visitors to take off.