Sitcoms without laughter - live or simulated - are just ghastly and ghoulish; as I've said before, if you watch M*A*S*H on DVD with the laugh track turned off, all of the sudden, the brief pauses are emphasized, making the flow of the show awkward and slow, and certainly a lot less fun.How I Met Your Mother didn't need it. I don't see why it even had it in the first place.
Case in point: back in the very early days of television, whe the Laff Box was really first starting to come into vogue, one of the networks screened two different pilots to three different test audiences: the pilot the network felt was superior contained no laugh trac, while the pilot they felt was inferior had one. The poor pilot with the laugh track tested through the roof, while the better pilot without the laugh track failed miserably. Similarly, HOGAN'S HEROES tried to forego laughter as well, but when that pilot was tested, audiences watching the silent version had no idea what they were watching, while audiences watching the laffed version loved it.