Every single negative review maybe. There's plenty of positive ones.
All my Trekkie friends think it's great, so my anecdote cancels out your anecdote. And as for dissatisfaction in the internet, all the episodes so far have scored pretty highly in this particular group of internet, and I can't see any reason this group of fans would be any more likely to be positive than any other. We're usually referenced as a bunch of whingers, actually.
I don't have any Trekkie friends save but one TNG fan, but she hasn't had a chance to watch it yet. However my two roommates, one of which grew up watching TNG and loved it (but is definitely not what I would consider a Trekkie, this was a childhood love between the ages of like 4 and 8 that didn't develop into the fanaticism that we all gladly take part in) and the other has no Trek background besides the JJ films which were 'pretty cool, I guess,' are both absolutely in love with Discovery.