I had no idea that vampires could even do this while I wasn't in control of them, and I've NEVER seen one break in and feed on my sim. That's a shame, I would have liked this. Feeding, not turning. There IS a difference too.
Every night would have been a bit much but I don't know what the frequency was since I've clearly only had the pack since the nerf. It's too bad they couldn't have found more of a middle ground, I would think there would be a rather larger mid ground between nightly and never! :/ This seems to be the way of TS4 though. All out, people complain. Take most of it away and upset the other half. There's all this middle ground that the TS4 team seems to be missing entirely.