Silver ETF shareholders didn't even start selling in recent years with all the price drops.
During 2009-2010 they were a main cause of the price uptrend back then. They bought about a half annual world supply silver, with the Comex side all the time sitting on a big 50000 position - being a quarter annual world supply. Then the Comex side, and lotsa other existing stock holders including stackers, sold. Just look at the recycling increase.
Then during 2012-2013, the mined+recycled silver didn't find that high demand anymore without dropping the price big. Since then sideways.
So tell me, which demand is gonna move the price up? There is only 1 price mover left, being the Comex, and since those nearly never let the contracts actually end in delivery (the dollars they get during the position existence, that is what they're after, not the silver), it's just a temp price movement until they dump their positions once again.
What else is to expect, as long as general prices don't rise to catch up more with pm prices since 2008? Hedging against inflation without inflation means profit, and as seen: it's taken rather sooner than later haha.