TL;DR - You will have cancer by end of post.
Also people who complain about spam, will not care to watch a tutorial on it.
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Spamming: Doing the same thing over and over again that the opponent has made blatantly obvious that they can not work around. Usually doing something that
exploits a weakness of another player's character choice and in the case of injustice "stage choice".
Camping: Utilizing an optimal spot within an FPS and holding your ground firmly. This tends to be in a spot where the camper would have the advantage i.e. behind a corner, a tight 1 way space in which they will ALWAYS see you before you see them. Normally
exploiting a landscapes geography.
Running (3D PVP Beat-em up exclusive): People who have a primary weapon with good range i.e. Guns/Arrows ect. Since its not 2d they literally run around and force you to chase. In which they can then turn around and pop you. In many 3D PvP games they aren't the most balanced so given stage design this can be something that is
exploitable.
The key words here are not "Spamming/Camping/Running". They key word is various forms of "
exploit" the fact is most games today are not 100% skill based. As we know there are times where "this character can exploit this character simply because they exist." Hence "counter picking". In fighting games (Taking Injustice here), If I'm playing Green Arrow and I get stuck against a Super Man that's one thing. However couple that with being stuck vs Super Man on Roof Top. The Super Man doesn't have to be "great". Just simply serviceable and my uphill battle has become a full 90 degree climb and we haven't even started the match yet. The fact that a character can simply "DO" something that mine can't can skew the mind into believing that something is unfair. Because my character's
exploitable lack of ability to do something.
Now the thing here is in an FPS all maps would have to be symmetrical. Each team would have to have access to the same weapons, power ups, ect all at equal distances from one another to make sure SKILL is what decides the game. So if someone on (Team A) decides to camp. Someone on (Team B) can now go camp in the mirrored location. Although this sounds ludicrous that is how the people complaining have their mentality set. If you can
exploit that I don't have an EQUAL chance to do myself, it becomes on of the aformentioned ['ing] words.
(Example)
A much more reasonable example is take the FPS genre. As we all know in some games (Team A) starts closer to the good power ups/weapons in relation to (Team B). If there is only one sniper rifle on the map and its right next to (Team A), it would make no sense whatsoever for (Team A) to say.
"Guys its not fair... we're closer to the Rockets and the Sniper.. its only fair to let opposition gain access to one of these!"
(Team A) is going to take both because the game allows it.
Now is it unfair? To an extent. Can it eliminate skill from the equation? Yes it can. Now lets go back to fighters. As we all know every fight is not even. This is validated by the simple existance of the concept of MU numbers. You can simply
exploit someone's choice of character by making a simple pick. No skill has been shown, just a simple handicap to cover a skill gap or to increase one. These games were designed for fun and now this uber competitive element has made it where a lot of "Gamers" can not even have the slightest bit of fun unless they win
ALL THE TIME and have no problem with using the exploits given to them by the game. These games are primarily marketed to have
FUN not to be a 100% competitively driven sport.
In sports you have the SAME amount of players on a SYMETRICAL field of play or at least the same point of origin and the ONLY thing that matters is your skill level. Not which racket you choose, which cleats you wear, not the type of goggles you got, your simple ability ALONE. Games are not sports, this is invalid way to think. There are balanced things and there are things that are just inherently bad and cannot be helped. Your skill level CAN overcome some of these imbalances however when you couple these imbalances with things like "lag", "host advantage", "latency", for some people who are here for just "jollies" are going to agitated. None of these people who cry spam/camp and all of that are going to be at events held for their respective games. So they don't understand the concept of "casual" and "high level" play and that there is a distinct different between those two metagames.
Like when I play Injustice with my dad who is decent'ish. I'm not going to pick Bane and just command grab the hell out of him because I know he can't stop it. I know we are playing to enjoy ourselves. Not to get better. Not to have a long drawn out match. Not to let ONE MOVE dictate out the other person will be playing. And that my friends is where babies come from. Oh and why people get so salty over things they shouldn't get salty about and why people justify an action that doesn't need to be justified.
And for the ONE person who read this. My fingers SOLUTE YOU!
Edit: Did I debunk it right? 
That's a shame, but it's likely the case. there's someone in the comments trying to tell me why characters like Zatana are OP, and that the patches are killing the game. Even though to my knowledge, the patches have made the game better gradually, as opposed to the all over the place patches that happened to MK. 
