I felt comfortable giving scores to anime(on a 10-point scale in MyAnimeList) until two years ago because I probably still hadn't formed my taste and I also hadn't watched a lot of anime. But, in recent times, giving a score seems pointless, since I feel like my opinion isn't reliable and changes considerably over time.
The anime I scored back when I first started watching anime(which is about 4-5 years ago), aren't representative of what I feel about them, especially in comparison to scores I gave to other anime.
For example, I gave Blue Exorcist a 7 on MyAnimeList back when I watched it(which was in 2014), but it's more like a 5 for me now. That's the same with a lot of other anime, like Elfen Lied, Mirai Nikki, etc., and most of their scores have gotten worse in my mind. But I don't feel like going back and changing them because it's representative of what I felt during that time, but it's inaccurate when you compare the score to the rest of the list, and my opinion on it currently.
Also, giving scores to an anime sort of completely brings down the entire show itself to one metric, or a quantity. Even in a review, most people just look at the score and judge the anime, instead of reading the review itself. I've done this myself, and I've experienced other people do it to my review.
This is a question more suitable to people who've watched more than a hundred anime, and also have a pretty versatile taste that's not restricted to specific genre.
The anime I scored back when I first started watching anime(which is about 4-5 years ago), aren't representative of what I feel about them, especially in comparison to scores I gave to other anime.
For example, I gave Blue Exorcist a 7 on MyAnimeList back when I watched it(which was in 2014), but it's more like a 5 for me now. That's the same with a lot of other anime, like Elfen Lied, Mirai Nikki, etc., and most of their scores have gotten worse in my mind. But I don't feel like going back and changing them because it's representative of what I felt during that time, but it's inaccurate when you compare the score to the rest of the list, and my opinion on it currently.
Also, giving scores to an anime sort of completely brings down the entire show itself to one metric, or a quantity. Even in a review, most people just look at the score and judge the anime, instead of reading the review itself. I've done this myself, and I've experienced other people do it to my review.
This is a question more suitable to people who've watched more than a hundred anime, and also have a pretty versatile taste that's not restricted to specific genre.