The reason I'm ok with the destroying items idea is that I think the developers will prefer it, rather than that it benefits me. Obviously it's better for us if we can still desynth or trade in the items after adding them to our log, but it reduces demand (slightly) if everyone gets dual benefit from each item which in turn reduces the time taken to do things which in turn reduces subscriptions. You should obviously still be able to glamour 'non-logged' items as normal if you want to do it that way, to accommodate things like the anima weapon. Which should probably be non-loggable in the first place until the questline is complete, to avoid people making mistakes they will later regret.