On a side note, I am trying to sell my very little stack of LTC - 7.04 - for like a week or 2. Gdax never works - the ID validation is always down - and I haven't found any other solutions. Any ideas?
Took me a week before ID check worked (more than timeout, it also forgot my data uploads 3 times.. not reassuring). One day I got a mail saying I was in.
some use localbitcoins to sell hand to hand (never used it).
Id verification has nothing to do with liquidity. You should get verified before you get into it. GDAX volume for Litecoin/USD was $300M today. If that's not enough you can exchange for BTC and then for USD.
I've never trusted the MFA for transfers on GDAX, what I do is transfer to my Coinbase account and then create a bank transfer there where, for some reason, their MFA mysteriously works.
There is always some sort of spread because arbing has fees, but 10-20% is unheard - had to be a momentary difference. I'm seeing $766 Kraken vs $789 GDAX right now. Both are easy to get USD in/out of* so pretty comparable.
* Before they started adding 50k/users a day and became so backlogged.
Cryptos are not liquid at all.