Lovely idea. That being said..
The most lukewarm project of 2017-2018 goes to.... well, it's either XEL or Tezos.
I was promised decentralized computing. Bittrex doesn't keep coins listed these days that aren't delivering products.. see MetalPay.
But half of the projects listed on Bittrex are in early stages of development or are only nearing completion? Not many are fully developed. Most of the coins being de-listed from Bittrex are either coins with broken blockchains or have no active developers/development, so I don't understand your point..