I had thought I'd written about each of these before but I'll just put them both here and endeavor to provide some evidence if I can, but not sure what I could provide that would be sufficient.
-Asking another race to declare war on another sometimes makes them agree to literally anything extra, pretty game breaking temptation to tell them to give you literally everything tradable at the time including max credits per month.
-Altarians still cause guaranteed crashes after a certain point, no crashes if they're not included in list of races. Reloading a save may work for a bit, but after a point, you will be unable to progress.