I think it's just the type of audience they attract.
Someone who has an amazing taste in stories will probably read the crap stories and stop halfway through so they often wouldn't leave a rating...
plus the majority of the audience of shitty stories tend to be children (or early teens) so they have more time to actually rate the stories than older audience who have less time available because they're busy with life e.g. exams, jobs etc.
early teens. well, that might explain it. but still, it doesn't justify how poorly good mangas are being treated.
Later teens and older manga readers tend to be more picky with mangas as they age so they leave more accurate ratings... like, I read some of my 5-star rated mangas I read around 7 years ago and are all actually 1 or 2 stars now (⊙…⊙ )
or no one even reads them. its a sad reality, I guess that's the thing I don't want to accept.
there.is.not. but when we stumble on a good piece, we would love sharing it, wouldn't we? and to do that, rating it is the way.
that may be true, but it won't make the cut. by rating it you will give the manga a higher rating which in turn, will improve its popularity.
It hurts for me to see that masterpiece mangas like Uchuu Kyoudai were rated 9.7 here by a measly handful of votes. yet, there are some webtoons/manhwas, poorly lacking in story substance and depth which the only saving grace are full-colored pages and freakishly "good looking MCs', were rated 9.9 by thousands. The difference in the number of voters is by leaps and bounds. if it's not absolute madness, I dont know what it is.