People are afraid that BTC will drop more. They want to exit crypto so they sell XEL for BTC and then BTC for fiat. With hope that they will buy back in few months much lower (or never). At least that's how I explain it myself. Bad launch timing for donators, good launch timing for anyone who wanted to join XEL cheap.

If you don't have to exit crypto for fiat; If you know how and can control your nerves - just stay calm and wait. This drop is all around crypto, not only XEL. XEL didn't had enough time for better distribution. There are still many original holders in XEL that's why when 500k holder feel panic he doing tx to bittrex and just sell at one shot, creating big red candle and being glad that he's still at some profit.

Hard times for all crypto.

Also releasing computable part today (assuming that we will have it ready) will not help at all if we're referring to price. People still just want to jump to fiat.

What's best for XEL right now? Just wait, develop (get back on testnet as soon as we can), test and observe crypto world. Best timing for release computable XEL will be at the moment when people will be enthusiastic again looking at crypto.