Not going to argue with you, since I can understand why you're feeling that way and mostly agree with you, but let me try to share some of my impressions :
1/ there was a very long hiatus in content updates, because the original game was so poorly coded that no one except maybe the original author could add to it, even less fix bugs and reliably translate it. So yes, we all want to understand our games when we play them, and there is a price to pay for that (in patience).
2/ ero content is not easy to add. Everyone here enjoys reading such content, less would enjoy creating it (it's almost a full-time job for some authors), and even less being able to do it consistently (releasing stuff like every month or so) while matching the "quality" of the rest of the game. It's not just a matter of adding a couple of pictures here or there, or writing a single scene and be done with it either, because most people like you and me expect more of the game by now : long story arcs, interesting characters, etc. Again, this comes at a price.
3/ Let's not forget that the game wasn't originally created by the team that translated it and kindly keeps it updated for us, meaning that if they had it their way, I guess some would probably have not chosen the same setting, or the same gameplay design, or the same characters, etc. Being what it is, radically changing the game would probably kill it at this point. Being limited by this constraint also means that some potential writers might feel less motivated creating content for this game than they would for their own game.
4/ Finally, there are mods, and I'm glad that the game now offers this option to us. We just need people creating and then updating them I guess.
So I'm definitely in the same boat than you, but I think so does the team behind the translated game. We all want more content, but it won't happen overnight. Above all, I think we need to be grateful for what have, and have more people motivated and contributing, which is always easier said than done.