Many forums of late are neither deserving of an agree nor dis-agree, merely just a waste of reading time. 
That should be communicted to the authors, especially serial offenders.

While this is a small and unnoticeable idea, it would be good for railpage to update the name to something more recent as cityrail was abolished about 7 years ago
An idea for a new name would be 'Sydney Region news"

I would like to see tracking with maps on a mobile device.

When Someone likes your post, you get a notification saying who liked it and on what thread at whatever time 

Examples
Dangersdan707 disagreed With your post in Murray basin Standardisation Thread
YM-Mundrambilla found your Post informative in SA to keep the overland going Thread 
And so on

The idea is one can choose to follow a user on the site and be informed of new posts, news, uploads and contributions like photo comp etc.

Once the user has done something on the site you get the pop-up notification with the link.

When looking through the locomotive database would be useful to have the location of the locomotive displayed as a part of the data.

For example - Inland Rail should almost have its own forum parallel to the NSW/VIC ones etc.  All items related to IR go in there making it easier to find historic conversations etc, perhaps preventing new threads asking old questions.

Others would include
- Murray Basin
- New long distance Victorian trains
- Ballarat line upgrades
- Other geographies of rail (eg South West Queensland, Townsville line)
- Sydney Metro Northwest

There would be many others that other posters could suggest. 

The only thing might be were one thread might cover 2 topics with might need some more thinking.

The current forums would remain as is as there needs to be places to discuss grain harvest, sightings etc.

In this idea instead of users posting service failures and updates or twitter links for comment we have a system which reads the twitter feed and when an update comes through it is automatically posted to the forum thread.

The same could be done for Sydney Trains and also for Queensland.

Not sure if available for V/Line or Countrylink?

Ever Partially agreed with some one in the forums? You should get the idea

An API to allow content providers to insert marketing information onto the site where they are billed for the usage and we provide a report on views.  need to build a list of prices and the API should be available to all users who register.  Payment of the usage should be via PAYPAL merchant interface.