Because I didn't like it? Why would I suggest otherwise if I didn't like it?

Whatever dude, I'm done responding to you. Not worth wasting any more time on.

Okay? I'm not complaining about the scene being in the anime or the anime in general at all. It is not my personal cup of tea (which is why I stopped watching after the first few episodes) but that doesn't mean I am saying it is a bad anime. I was just warning someone that it is a dark anime. They can either look up more info themselves if they are curious or see that it is a darker anime and decide that alone is enough that they wouldn't want to watch. It's not like I am trying to say that it is a garbage anime or anything. Why do you seem so angry about this? It's not that deep, dude.

It depends on the movie. Usually, no I don't read anything that goes in-depth that would give away more than a brief overview as I will want to avoid spoilers since I think they ruin the movie. Also, I highly doubt an official synopsis of Goblin Slayer will say "graphic rape scene in the first episode". Maybe if it was a fan made synopsis trying to warn people it would be in there, but not in the official synopsis when that scene was intended specifically for the shock factor. Usually a synopsis is a general idea of what the movie is about, not something that goes into details of key scenes.

I'm not certain about the entire series, I only watched the first 3 or 4 episodes personally, but I do think it is worth cautioning people that the first episode at least is pretty notorious for how dark it is and the emphasis on the shock factor used in it. Especially if they are going into it expecting it to be a typical tropey adventure anime.

Anime called Goblin Slayer. Do yourself a favor and DON'T watch it. First episode gets dark pretty quick.