Sorry, read "gil-sink" as amount of gil you have to blow through to play decently. In Aion I went through millions of kinah to socket HP stones on pieces due to the whole "break everything" thing that SE now has going. In that case, it certainly feels like a gil sink.
In regards to removing gil out of the economy and lowering inflation, I would still say it does to a small degree. Not all of those armor pieces getting broken are exclusively being made from player drops. I'm sure some of it comes from NPC.