It’s not for me either, but i guess not being strung along by the main story line and instead being able to just go anywhere and do whatever is appealing to people who just want to immerse themselves in the games world.

I’d say it depends on whether or not the voice actor whose voice the AI is imitating has agreed and is fairly compensated.

I’m imagining a game, where instead of predefined dialog choices, you talk into your microphone and the game’s AI generates the NPCs answer.

The best MMO for Halloween IMO is secret world. unfortunately it is pretty dead, so finding people for group content is near impossible, but the solo quests are pretty well done and a lot of fun.