Why some people FUD like this? Poloniex doesn't delist LTC and that warning has nothing to do with delisting. I think OP has different FUD plans but it didn't work here. Anyway I don't use Poloniex for a long time and I feel pity for its users. Poloniex is deader than a pussycat doll. If you want to trade LTC you should use Bitfinex, Kraken, Huobi or even Bittrex etc.
Yeah many people still doing FUD just to say that there's a bad news incoming in the altcoin. I think the reason is they want to buy the altcoin that they make FUD in cheaper one lol