technical implementation of Obyte is beyond praise,
It seems your are blind to cons of Obyte. Want to know why investors don't take this coin seriously? OK, there it is. This is because the highly centralized nature of Obyte network architecture. Want to stop Obyte working? Nothing easier - stop 15 servers belonging to Obyte witnesses, even less than 15, because it seems that 7 witnesses belong to developer itself and run on the single server.
Nope, that's not how you stop the network. In order to stop the network, you would need to take out all nodes.
Where did you get the number 15 from? There is 12 Order Providers needed for every transaction and as long as there are at least 7 of them are posting their own transactions, all previous transactions can become stable. There is no blocks, so if for short while, too many of them stopped, network keeps running and new transactions get distributed, just the confirmations are delayed.
There are 7 Order Providers who are not the founder, so Obyte has been fully decentralized and doesn't have a single point of failure since July 2020.
Maybe shut up about things you don't understand.