Privateer has different comm responses depending on your reputation with a particular faction (friendly, neutral or hostile). The one exception is the Retros for whom there's no way to increase your reputation; it's always negative. Except...
... if you destroy 6528 Retro ships, an incredibly unlikely number, you'll max out the value and flip around to friendly status. But there are no recorded comms... just warnings and weed jokes that the game's designers thought would never be seen! Folks asking why this happens: each Retro ship you destroy subtracts 5 from the reputation, which starts at -128. Killing 6528 of them subtracts 32640 which hits the 16-bit negative maximum. One more and an integer overflow jumps you to +32763 (decidedly friendly)!
Which is to say, maybe those Retros aren't so bad after all.
This may also explain their amazing temple in Righteous Fire.
