Great points. Does Steam get around this slightly by having different tags intended for meme reviews? I.e. I think I’ve seen ‘10 people said this review made them laugh’ or something along those lines. That at least makes it a bit easier to filter out the ‘actual’ reviews. I wonder if the cumulative total (on both Steam and Goodreads) averages out the joke/genuine reviews, assuming that a) enough people have left a review and b) there hasn’t been any review bombing.
And yeah there are plenty of books, games and shows out there that I’ve absolutely loved but they’ve been reviewed terribly by professional reviewers. I think on the whole people assign too much weight to arbitrary totals - “Oh this book is a 6/10 so I shouldn’t waste my time on it”. But if you think like this, you’ll miss out on so much.