I don't think they erase every non-straigh sexuall leanings at the operation, even if they would be no doubt capaple of doing so. Because Tally and the others wonder about how silly it is that the Rusties treated woman as less worth and discriminate people just because there ethnicity, and it just seems wrong to me that they are so liberal about that now but erase LBGT-sexuallity.
And I don't picture Peris as gay, but my headcanon is that Fausto and Ho are a couple.
My bad, they were the ones I was thinking of. How I mixed them up with Peris I have no bloody idea.
Like I said, too damn long since I read the books.