"Amok Time", "Mirror Mirror", :"Journey To Babel", "Trouble With Tribbles", "Doomsday Machine". "Obsession", "The Ultimate Computer"... are truly great episodes. Even the other less celebrated episodes have a lot of original ideas.There are four first-rate episodes, a few good ones and too much Planet Of The WTF - Nazis, David Souls, Romans, Blonde Vietnamese, Tea Party Cavemen...
Ain't nobody got time for that shit - "downvoting" is mainly fan paranoia and frustration at people liking what they don't like.
Sure you can pick a few bad episode but if I was to apply your same level of criticism to TNG or VOY Season 2 you'd have no episodes left.
There is downvoting in the Discovery "people" votes. As I've mentioned before in another thread - I went through perhaps a 100 of the zero voters in "Rotten Tomatoes". It was full of GR would roll in his grave, why are we catering to the LGBT community, why isn't it set in the 24th Century?
Be that as it may even if there is deliberate downvoting, that means that there are at least say 1000 Star Trek fans who won't be watching Discovery and maybe a lot that can't be bothered voting. Whether or not they are judging Discovery "fairly" is there enough of these fans that CBS should cater for.
And is it worthwhile. Are you ever going to please them anyway?