That's correct, you have to pass the KYC requirement first before you can use the exchange.
But the volume is very low at Bittrex, -
https://coinmarketcap.com/currencies/vite/#marketsHow about Hotbit, I guess they don't require KYC, just not sure as I am not anymore using the exchange for months already.
I've find out that the best way to buy vite tokens is IDEX.
As you can see average vite price is 0,000135 ETH while on IDEX (decentralized exchange without any regulations) is 0,000140. A little more but you have close to 0$ withdrawal fee, no KYC, no risk of small/shitty centralized exchanges that may hold/steal your steal funds.
To be honest vite has quite nice market there.
Its worth to remember that those are ETH tokens before mainet. Those can't be used to vote. It is possible to swap them in Q3 2019 during token swap or via obtain them from airdrops/tasks.