Let me see if I have this right.
A bounty hunter that normally plays in solo will "Require" a kws just to legalize their action to attack a wanted ship. It sounds like if we do not do so. We are committing a crime by not using a kws.
Wanted npc's will have less value than wanted commanders.
As someone who isn't that interested in power play. This sounds like the basic npc bounty hunter will get paid less and be required to use a kws just to legalize bounty hunting.
If we are going to an Interstellar Factor and losing all of the influence. Shouldn't we get a credit bump for that influence? It is clear it should have value. (While the background sim may not actually do it. In a real universe the factors would be taking that data in large volumes to sell probably to the super powers. Giving them a large profit.)
No, you definitely don't have that right.
When you do a basic scan on a ship, it will either be Wanted or Clean. If it's Wanted, it means the authority on the system has placed a bounty on it and you can legally attack it. This is the same in the new system and the old system.
The difference in the new system is that if you do a KWS scan on a target, it ALSO reveals any bounties the OTHER local factions may have placed on the ship. This is going to replace the 'lightweight Interstellar Bounties', i.e. Federation/Empire/Alliance in the current live game.
The 'legalize' part you're mixing up is in the new system, if the authority in the system is, say, a Federal aligned faction and you KWS the ship and it reveals a bounty from ANOTHER local faction that is also Federal aligned, then it will make that ship Wanted where before it was Clean... 'legalizing' the attack on it. You don't have to break any laws... if anything, it's the opposite - if you scan Clean ships they potentially could change to Wanted if you reveal a bounty on them from another faction in the system that is aligned with the same superpower as the authority. The same goes for Empire faction bounties in Empire aligned systems and Alliance faction bounties in Alliance systems.
It remains to be seen how much that'll actually happen - I'm not sure how many people will bother scanning Clean ships on the off chance they'll turn Wanted. Also, the Clean ships I've scanned in the live game with a KWS have never had any hidden bounties so far.
For how it changes for someone who only ever KWS scans Wanted ships - you'll get extra bounties, but they'll be from local factions, instead of those broad-brush Federation/Empire/Alliance ones.