UNO has been experiencing disruption in block production due to a switch miner jumping in with 5 phs, running up the difficulty, and then when block production slows, they switch away. The remaining smaller miners then have to slog through the high difficulty until it resets and normal 3 minute block time resumes.
This last period of disruption ended not 24 hours ago, after nearly 4 days of no block production. Smaller miners finally broke through and were rewarded with a flood of new blocks. But shortly after than, the big miner came back in and did the same thing. Its now been 8 hours are we are still waiting for small miners to find another block.
UNO's difficulty resets every block, unlike Bitcoin which resets after 2016 blocks. But the damage to UNO is compounding through the disruption of this behavior. Exchanges don't appreciate it, and neither do wallet makers. They will certainly drop Uno if this continues. If it is the miner's intent to destroy UNO, then they are on the right track. If their goal is to maximize profit for the long term, then they should want UNO to survive, and need to change their behavior accordingly.
I have no control over any of this, other than to explain how UNO works. UNO has been around since 2013, so its one of the oldest blockchains still running. UNO survived when ViaBTC pulled about 12 EHS; miners eventually were able to break through and return to normal block times. And as long as their are persistent miners, UNO will survive, even if it takes days, weeks or months to slog through the high difficulty. But who wants to do that, really. If we can keep UNO running smoothly and predictably, it continue to pay miners long into the future.
But selfish behavior can just as easily kill it off.
