I'm here to stay.

Bittrex is free to delist any coin they like for whatever reason they choose.
(We already have a missing original dev, and an exit scam tied to our name, so sadly this was just a matter of time.)

Yobit is still open for trading though: https://yobit.net/en/trade/SPR/BTC

I hope the fairer price will allow a much fairer distribution of SPR among those who still believe in this project or see an opportunity.