One of the few things that will make me turn off a show is when I notice that the laugh track is fake, and is being used in an incorrect way. Big Bang Theory is a prime example of this, with horrid horrid fake laughing.
This is a good use of the fake laugh track though.
A laugh track, at inappropriate moments, only works when the content is not meant to be funny. Darth Vader is a comedic genius in this one.
When it’s a shitty US sitcom, well…. eh. They NEED a laugh track to tell you it’s supposed to be a comedy program.