Weymouth station and immediate area have actually been upgraded in recent months ...
You're right. The old tramways track has been gentrified into a walkway with interpretation signs. The frontage of the station has indeed been redone. But that's not much help when the station building is closed from (?) mid afternoon on a sunny summer Saturday, with passenger for trains having to find their way around the side of the building to the back gate.
Yes, there *is* a shiney new high fence with gates around the back, and no doubt they are closed after the final train. Staff member? - yes, you are correct that there's a train dispatcher (if not his official title, the role he has playing) in the office off to one side of the station building. It was not obvious to me that he was available to help people and the office has no windows through which you can see someone inside. And when the main building is closed, the only way to see the departure board is to squint road to see it.
Yes, things have been done. It could be so vastly improved by having a departure screen displaying next trains as passengers enter through the (!) back gate, and having the member of staff spend his time between dispatching obviously available and approachable to customers.