Phoenixmgs said:
Aggregating likes and dislikes is even worse that aggregating scores because then FFXIII would have a 98.7% rating vs an 83 aggregate score. How is that more helpful?
As a rough estimate for how likely it is that any given person would like it.
This is assuming a whole lot of likes and dislikes. The more people that vote, the more accurate it is as a "rough" estimate for how likely it is that someone might or might not like it.
Whether they do or not requires more than just that (i.e. reading the reviews). But it's probably enough to make them give it a second look, if only because there's a lot of positive (Or negative) votes.
My point is that the actual amount of people voting is factored into determining this, rather than the sum of individual ratings that are skewered by how much any given reviewer like or dislike a game (And by the importance they put in specific elements) - Which I think is completely irrelevant in this context and not even something that need or should be quantified. Why? Because it's not fact.
If we are supposed to look at games critics as especially trustworthy we should do so for the quality of the written review, and for how well it conveys the opinion of the reviewer and the information about the game.
Not because a game is given a "proper" numerical rating.
Expecting or demanding that all games be judged by the same standards is effectively nothing but confirmation bias. You want others to agree with what you have already made up your mind about. That or be told that you should like something more than you do (Because it's rated high). Too much faith and too much importance is put into these damn numbers.
You either recommend it or you don't. Buts and ifs are covered in text.
As for your example - How would that be less accurate? If more people like the game, then more people like the game. That's the one and only purpose of that metric. That is how you determine the likelihood of something (Given enough samples, of course), by looking at the pattern of recorded fact.
Is it invalid because not everyone leaves feedback? Then I'm sorry, but we can just scrap democracy then because not everyone vote.
Whether you will like it or not won't be dictated by numbers anyway.
Note: I'm not against summaries. A text summary that quickly details why you would want it or why you really wouldn't is a great way to end a review and a perfect tool for skim readers to determine if the game is interesting or really not good for them specifically.
"I recommend this game for anyone that likes X or Y and don't mind Z."
Or if it's a bad game, I'll just say that "X or Y are good, but it's ultimately ruined by how bad Z is." If someone don't mind Z then they can still buy the game.
Details are important.