Problem with using LTC is that there is no LTC/Steem pair on any platform, so you have to go LTC->BTC->Steem and pay more fees. It depends on how much volume it is whether it's worth saving on the transfer. Steem/ETH has low liquidity but not as low as you might expect.

Also Kraken generally sucks recently, but there are other alternatives for ETH/fiat and LTC/fiat in Europe.