At current count, there are 718 people that have reported having these issues with instability on High Sierra. Are you going to dismiss all of them, as quickly as you're dismissing the person you responded to?
You keep swinging and missing. My great experience with High Sierra doesn't negate others negative experiences, but they are both just anecdotal evidence and not meaningful measures.
700 users who suffer from problems are super motivated to speak up, millions of users having a great experience have no reason to create and post on lengthy threads about how great High Sierra is.