I am annoyed that major factions send more warships against me than they do against pirates, pathers, and their official major enemies. Hegemony and Church do not even send expeditions against the Free Ports in Askonia, which is controlled by a faction much like the player's. Only the player fights ten capital spam assaults. At best, other factions fight the equivalent of 200k bounties. No wonder why pirates can raid successfully over and over again, and worlds decivilize if player does nothing.
The factions treat the player as an existential threat, yet they do not have the guts to declare war. Given the abuse they inflict on the player, I would not bat an eye at sat bombing every last world to make them stop. Only non-stop pirate activity prevents me from annihilating all of core, all because I get tired of constant expeditions.
As for reputation, all that matters is keeping it above hostile for maximum accessibility, or maybe suspicious so you can dock with transponder.