Regarding the scan system and whenever or not bodies should be surface revealed or not after honking the ADS: imo the real issue with this is that scans hardly matter past namestamping.
For example, there are maybe hundreds if not more systems in the bubble that are low population and therefore not charted by default and thousands of players have atleast partially scanned these, and guess what? They are STILL not charted.
This is the real problem with exploration, well one it's major problems anyways.
Now getting back to the revealed vs unrevealed topic: if the system would work differently in a way where discoverers are actually charting the galaxy instead of just namestamping things, then a solution could simply be that the first ADS honking will leave you with the black blobs, but if someone already brought the data back then that system should be atleast visually revealed, whenever or not the honking should then still be a requirement and if one brought back data set is enough or if it should be 100 is a different topic.
I personally would prefer things to be visually revealed right away, but that's because I find SnailCruise to be a major timewaste during exploration. Most time is spent going from a to b instead of actually seeing things.
In a game like Just Cause or Minecraft you have lots and LOTS of different landscape around you so you're already seeing interesting things while going from a to b, and I get often enough sidetracked from that when I play JC3.
In ED? Well, there's spacedust, and more spacedust, and guess what, even more spacedust. That's it, that's ALL you see while going from a to b, so I can simply not see or agree on the point of SnailCruise's slow accel/decel.
Sense of scale might be an argument given, but that loses it's validity to the fact that you not even get a sense of speed from the lack of everythings in space, and yes I know that it's that empty between things, it's being forced to watch the ETA for dozens of minutes while flying in a straight line that bothers the hell out of me.
So yeah, I'll take instant reveal so I can rule out boring planets before going to them.