Loss of Identity: Given how often it’s done (see: Body Surf), everyone in a modern transsophont civilization is pretty clear that body-swapping doesn’t cause it.  The mind is not the plaything of the body – fundamentally, at least, even if it may distort the way it plays out.

Strictly speaking, say the Empire’s sophotechnologists, identity could be defined by the logos, the personality organization algorithm, alone.  It’s the unique, volitional, free-will-granting thing, after all – but that’s much the same standard as reincarnation might be said to use; sure, it’s the same soul, but when you throw away all the memories and personality…

Thus, for practical purposes, there are legal standards concerning exactly how much of the mass of archetypes, subpersonalities, personae, agents, talents, memes, memories, etc., etc., that make up the rest of the mind you can grossly edit or remove over how much time before you are no longer, in the eyes of the law and (practically speaking) everyone who knows you, the same person.  To avoid committing de jure cognicide on yourself, stay on this side of the line.