Why am I being told I don't have permission to reply to certain topics?

The reference areas on the forum cannot be posted in, were you trying to post in FAQ perhaps?

Any further problems just let us know :)

One was in a discussion on neighborhoods, ex: Ridgehaven.

Think you might find the topic on Ridgehaven was in the FAQ section so that would be the reason you are not able to post.

Perhaps a new thread in General Discussion would be an alternative way to post your information on Rideghaven.

Was just hoping to join in on the discussion already happening on the suburb...didn't realise.