Because they're criminals.It's pointless, and really doesn't make sense why a scientist or tourist would be so worried about a simple ship scan to begin with.
Because they're doing research that the current system power is not happy about.
Because they have enemies and don't want their movements being recorded.
The assumption with these long distance sight seeing missions is that these are systems that are being scouted by scientists or company employees for one faction or another. Having opposing factions know of these plans could have the problem of ruining those plans of bringing risk to members of that faction. Secrecy is important and is the whole reason why you're being paid millions for the journey.
Last edited: