I honestly like that part of the Wall of Fame.  Giving relatively-unknown indies from lesser-popular genres an honest shot to rank among the most high-profile titles of the year seems like a godsend for them.  I think that's where I first heard about Balatro.

Both are trash. Reducing it to a number so fanboys can war over it. A number says nothing.

Nah, it does vehicle something, but it's highly an unreliable metric to rely on. 

Best example I could think of are the reviews done by IGN, when they could legitimately blast a game and end up giving a decent 7-8 score which feels just weird when the written portion didn't portray this kind of opinion.

Balatro did start off with only a few reviews, but it now has over 50, so I feel like it's earned its place on the Wall of Fame fairly. There's a game on there currently with just four scored outlets contributing to its score, yet it gets a place on the Wall of Fame next to games that managed to maintain the same average score across 100 reviews (average scores on OC trend down as more critic reviews are added). If no additional outlets review it, it'll likely be on the final Wall of Fame. That's not what I'd call an honest shot really - the sample size is far too low and score too easily skewed. It also happens to be bumping down another indie title that has over 50 reviews (Animal Well); I think the latter deserves the spot more at the moment. 

7.8: Too much water.

That's fair too.  Balatro has netted way more scored reviews from Top Critics since then. 

I guess you're alluding to The Crimson Diamond, then?  Okay, that's a better example.  Even then, I still think there's something valuable to its presence in the Hall of Fame, even if it doesn't maintain its place like Balatro.  It reminds of an adventure game called The Excavation of Hob's Barrow: a modest spot on that year's Wall of Fame before eventually going down to the mid-80s.  I don't think I would've given that a closer look had it not caught my attention as that month's hot new thing.

Or their classic NSMBU review. 

9.1/10 for what they called an uninspired experience.

For the sake of clarifying that infamous review: her criticism there is in the repetitiveness of fighting water-based Pokemon during a big stretch of the game.  I wouldn't be surprised if she didn't insert the "too much water" insert at the end either. 

Imagine what an ‘inspired’ game could’ve gotten.

Bumping to see how scores look after two months since its inception

Astrobot - 100
The Last of Us Part II Remastered - 100
UFO 50 - 100
Metaphor: ReFantazio - 100

Like A Dragon: Infinite Wealth - 90
Final Fantasy VII Rebirth - 90
Elden Ring: Shadow of the Erdtree - 90
Balatro - 90
Persona 3 Reload - 90
Black Myth: Wukong - 90
Final Fantasy VII Rebirth - 90
Animal Well - 90
Shin Megami Tensei V: Vengeance - 90
Paper Mario: The Thousand-Year Door - 90
Silent Hill 2 - 90
Sonic X Shadow Generations - 90

Tekken 8 - 80
Unicorn Overlord - 80
Dragon's Dogma 2 - 80
Prince of Persia: The Lost Crown - 80
The Legend of Zelda: Echoes of Wisdom - 80
Horizon Zero Dawn Remastered - 80
Helldivers II - 80
Stellar Blade - 80
Warhammer 40,000: Space Marine 2 - 80
Super Mario Party Jamboree - 80
Call of Duty: Black Ops 6 - 80

Life is Strange: Double Exposure - 50

Dragon Age: The Veilguard - 30

They obviously only rate the games in scale of 5 stars, so the lowest score you can get is 10 and the highest is 100 with 10 points interval. They also seem to discard 0-star scores, your rating will only be counted if you give it at least 0.5 stars. Also, a game needs at least 20 ratings to be qualified to get a score which so far very few games got 

We can see mainstream games will very rarely go bellow 80. The only mainstream game that managed to get bellow 80 was Dragon Age Veilguard, which was review-bombed until it got to 30 points. It's the only game with more than 100 reviews, in fact it's the only game with more than 40 reviews lol

My perception is a game with 100 are "very positively received", 90 are "positively received", 80 are "somewhat positively received" and 70 would be "not-well received", with "negatively and very-negatively received" being the games with 60 and 50. "review-bombed" games are probably the ones with 40 or bellow