No, never. If I'm in a full party of good players on a gametype like demo we will play objective by camping the bombs or planting them and letting the enemy come to us from their spawn. I'm sure whoever's flanking their spawn will get a few easy kills in a game but it's not some dick move where they die two seconds after every spawn. Who wants to play like that? It's as boring as paint drying. It's like being the guy in free-for-all who is up by 15 kills and still has to make his final as boring and tryhard as possible.
although its taking advantage of the games spawns like hijacked on Demolition, it just makes it almost unplayable especially with no scorestreak invincibility. you could spawn, die from lightning strike, spawn, die from camper on the 2nd floor window on hijacked, spawn, die from hellstorm missile, etc.