EDIT- Looks like the total network hashrate halved, and the block times are coming in faster than normal. Not saying this is what it is, but I've seen this with coins being attacked with exploit attacks. I would suggest pool ops keep an eye on your pools.
EDIT- Looks like we're cracking blocks every 5 seconds. This isn't normal.
EDIT- https://explorer.guldencoin.com/#/address/Gf7wGAwJGDLfoHcNCRLKZqpk2EQU5ixA6c - our mystery wallet claiming all these blocks right now.
Looks like our friend stopped for right now. 8 minutes since last block time, and the network hashrate is back up to what it was before. IMO, this is a definite exploit attack.
-Fuse
EDIT- Nevermind... he's back at it again.