SE already gave us an official statement of lost gil - In the suspensions if you were innocent and did nothing wrong, you were left untouched and reinstated. If you were linked to RMT, done RMT, duped or abused other glitches, you lost your gil/items and potential perma ban.

Nothing else needs to be said really. No one, video game company or real life investigators will go into absolute detail with the public or else it'll teach people how to circumvent getting caught.