Just because Hasflare has been around, dosent means they will stay around, they have screwed to many customers, and internet is full of disguist against them, "never again doing business with russians" etc etc
HashCoins / Hashflare is actually an Estonian company.
When you look at the never ending list of breached, hacked, seized and scam exchanges, I dont know a single one from 2011 that is still fully operational today, except a russian one, that appeared to be rock solid through all the crysis Bitcoin faced the past 7 years.
Alhtough they where hacked in 2012 they covered losses from reserves and trading resumed in a matter of hours.
Just a few examples I was involved in, where people lost Billions of Dollars;
Crypsty (US - hacked)
Vircurex (US - insolvency)
WeExchange (US - scam)
Tradehill (US - shut down)
Mt.Gox (JP - goxxed)
Mintpal (UK - scam)
Bitcoin-24 (DE - seized)
Justcoin (NO - closed due to regulations)
Bitcoin-Central (FR - hacked)
https://steemit.com/bitcoin/@michaelmatthews/list-of-bitcoin-hacks-2012-2016Besides that maybe I have to admit it was revealed in 2017 that BTC-E has been the destination of stolen funds from Mt. Gox, and was involved in the biggest money laundering in human history, with BTC 300.000 / 4 billion USD.
They reopened under wex.nz this year, promising to pay the customers back all their funds.
I dont know about business in Russia, but they really seem to know how to get shit done