Either you're wildly overstating this, or I'm playing in games where it just doesn't happen. I maybe get spawn killed 2-3 times a night (depends on if people camp the overlook on the castle in stonehaven).
Is this the internet's penchant to be debbie downer or am I just easy to please?
Quick scoping, camping, spawn killing.
Is this just people whining?
I run into a fair amount of snipers but quickscopers, especially good ones are extremely rare (I mainly play TDM).
Camping, sure, I run into it often but I also run tubes so it doesn't bother me at all.
Bad spawns though? I run into it all the time. I guess it depends on your definition of "spawn killing". I'd define a bad spawn as one where you're either visible to the enemy team (i.e. I see you spawn in), the enemy is in the process of turning a corner as you spawn in or you spawn in surrounded by enemies (i.e. any path you take will lead to an immediate encounter where you are at a disadvantage because the enemy is already looking there). Right now I'd estimate that I experience ~3 bad spawns per game (either I see the bad spawn and benefit from it or I'm on the receiving end of it).
Yes, Stonehaven is one of the worst offenders because the spawn is so obvious. I mean two people on lookout building and a guy spawns in the ruins behind them? Silly. The issue is that this happens on ALL maps but it might not be as obvious to you because you move a lot more than when you're stationary like on Stonehaven (i.e. you're behind 3 story in freight moving towards 3 story and guy spawns lumber corner right on the other side of wall, you spawn pro-shop move towards mid in strikezone and guy spawns other side of proshop, you spawn north side of cargo in freight and guy spawns south side with LoS on you, etc.)
I think if we had theatre mode you'd be able to see how terrible the spawns are. I watched every killcam each time I died a couple of nights ago and it'd make you sick to your stomache the amount of times I saw a guy spawn in on his kill cam. But hey at least they fixed the inception bug from MW3 where you could see a guy die then spawn in and kill you /s