An explorer sets out to explore, he may not find anything, sometimes he may find something. The problem in ED is that exploring is against billions of systems. It's a game and the player needs to feel a reasonable possibility of reward for time invested. If things are seeded out there, there needs to be encouragement for the player. I would like to see more financial reward for scanning systems. The reward for honking is fine, as is going to a nav beacon and targeting the beacon, but scanning without using the nav beacon should be more rewarding on a sliding scale, so that the last objects scanned get more more reward. This encourages following after the initial discovery to manually scan the system. If you honk and the system has something of interest, it should be flagged to the pilot. This gives the pilot a reason to explore that system.
I would actually be in favour of some sort of scanning functionality that allows you to scan when inside a system but not targetted on a specific planet, eg having a probe you can send out which maps a planet and gives you anomalies. Maybe a fly past of a planet yields a scanned map of what was visible. The player then reviews the scanned map(s) and can locate areas to explore. Together with that there needs to be the ability to locate a specific point on the planet.