Like anyone actually writes reviews like that. Other then Ign. And Gamestop. But seriously, nobody writes like that. And scores are an outdated concept.
I imagine the OP will buy it day one just to be all like LOLOLO I told you so when he encounters a single bug.
The 1/10 reviews happens a lot in places where gamers write their reviews just to taint an overall score out of spite because they bumped into one bug, think the graphics are outdated, hate the ending or simply because they like to hate on a publisher or developer.
And even though gamers rate that lowly or some sites rate too highly I don't believe scores are somehow an outdated concept. Scores are more than often personal but it does give you an idea of what the game is like from trusted reviewers without having to read mutliple reviews from beginning till end, some times with spoilers to see if a game is worth it or not.
And yes, someone like the OP will end up saying I told you so even if they stumble upon one minor bug, which will happen. It is fine to critique games but some gamers have expectations which simply can't ever be met and they don't even seem to realize it.