You keep watching, even though its really bad. I'm at the end of the fourth season when I write this review. I wanted to finish it as a good reviewer should do, but I cannot hold this in any longer.
First of all it's your typical high school drama with topics like parties, sex, drugs, violence etcetera. Next to that it's your typical Netflix show with a lot of political topics and cringy moments.
Every season at least two characters discover they are all of a sudden gay. Sometimes its believable, sometimes its really dumb, like with Monty. But not as dumb as Monty being killed for being in jail for a few hours.
In contrast to a lot of other reviewers I actually think season 3 and 4 are better than the first 2. I know the first season was the most original, but I felt like most of the choices that were being made where bad. I also didn't really like some of the characters like the lead, Hannah Baker. The second season was just a drag to milk the first season and was the worst of them all.
The third season was probably the best. We got to see a different side of Bryce and I really didn't know who would be the killer until the final episode. Even though the ending was kinda weak.
Season four started strong, but now that I'm almost at the end it goes downhill fast. The plot has a lot of plot holes like how did Clay get out of that pit when they went camping? Why do people follow Clay in a riot when they disliked him the entire season because he acted like a lunatic? And the multiple personalities was a nice touch but also a bit much. Next to that I could have seen this coming from a mile away.
My conclusion is that this show does pull you in. I'm curious about the ending. But during watching I do cringe a lot and pause the series to think about how stupid some things are. I wish Netflix could stop pushing their political agenda in every show they make. And when you want to develop a character, don't immediately go for, "Oh lets make him gay now!" You milked that one enough.