@mommunism I don't support the 10 ratings either. I specifically called out the 1's because, firstly, I've never seen any manga uploaded to MD where the 10's didn't rise in reaction to 1's pouring in, rather than the other way around; and secondly, a rating of 1 is usually much farther from the truth than a rating of 10, if we're being fair.
If the artwork is 8 out of 10, and assuming the plot is even relevant to what the manga is selling, let's say it's 3 out of 10, then I would say it's at worst an average manga.
Looking at the rating distribution on just about any title, it's hard not to notice that there are people trying to maintain the integrity of the rating system by giving accurate ratings, easily seen along a reasonable range following a sensical pattern. Then there's a big long bar of 1s. Often times there is a smaller reactionary force artificially pushing the 10s; never as badly as the 1s. Both are a problem, but one is a lesser evil for sure.