Well I personally enjoy the writing as it is, I guess we just have different tastes, totally fair.You can read probably the first 5 lines in a conversation, a random middle 5 lines and the last 5 lines and you'll get ~90% of everything important while still skipping a few dozen lines in most conversations here. That's not a sign of good writing, that's a sign of stretched out writing. Good writing is succinct, it communicates everything that needs to be communicated without going on for too long.
As for why I'm still playing? They're shit human beings and that makes me laugh every now and then plus the sex scenes are hot. The game would be better with probably about 50% of the dialogue lines removed but it's still enjoyable on enough of a level that I'll keep playing every few updates.