Let me repeat...
"You probably think that any second not being used to try to kill your opponent is a big disadvantage when in reality it`s just a simple luck roll and can go either way."
"Texting during a game is not an advantage all by itself. It`s what you do before and after you text that gives either advantage or disadvantage. Leaving your team a gun down can be an slight advantage or a slight disadvantage depending on what you tell your teammates to do, and the situation on the field. Certainly, running out right in the path of enemies who cut you down is a disadvantage, whereas waiting for the enemy, and bouncing a grenade where they are gonna be will give the advantage to you."
Assuming you clear an area of enemies or hide where they won`t likely look, you may get back into the game at a critical time to find the enemy unprepared for you, possibly preoccupied with others.
Whenever I`ve met this criteria, more often than not, I get a free kill, rather than the other way around.
As for camping, I`ll argue that camping is a premise of war - such as a sniper waiting for a target - and is thus essential in order to survive or defeat the opposite team. Spawn camping, however, is generally not regarded as acceptable in informal or public matches as it renders the game unplayable for some who do not take lightly being killed the instant they respawn or soon thereafter.( Me included, though I admire those that successfully spawn camp because though the game may be lost, its still fun to try to break the camp, or get a kill for a kill at least. Most would not think to look at it this way, and just get upset and/or leave.)
However, if it`s a competition, especially if money is involved, I`d do whatever it takes to win as defined by the game and its host, including spawn killing.
Just be happy I haven`t seeked to know how to spawn kill like a professional.