Board Thread:General Discussion/@comment-26349008-20150707134918

Is it possible that the reason why alien races were hardly mentioned in SU is because the Homeworld actually not only wiped out the races but also tore down their achievements and erased them from memory? I mean would the homeworld go so far as to not only wipe out the opponent race, but to also make sure they nothing remains to indicate their existence? I mean do the homeworld gems practice, Damnatio Memoriae? 