Much to my surprise 2 years after Bitconnect shutdown, it's blockchain apparently has remained up and I've gained
50 BCC tokens in staking it on a server that I use as a multimedia SAN..
It just tells you how strong are cryptocurrencies. Once protocol exist some time and bugs are fixed, it can just work forever. Bitconect was a simple bitcoin clone, so protocol was tested for 7 years. They added thsi saking you talk about. Nothing that hard and nothing you would expect many bugs out of it.