Some people doesn't know a lot of thing regarding how a crypto-currency works. Like me, I don't know everything about the crypto-world. But one thing is sure : I know the basics, when other are saying shit.
Multi-algo = potentially more miners = more trade volume = more secured network = potentially better for merchant adoption
That's all you have to understand. No more! Moreover, even if DGB will be a MYR like, devs will improves the multi-algo system. That's said, it's not a simple copy-paste of MYR, but an improvment with DGB's devs touch.
Tell me if you disagree or if I have wrong, but I don't think DGB is going on the wrong way.