lololol Ganon vs. Falco, jump towards them with dairs? Think about how ridiculous that sounds for a moment.
counterexample to most posts in this thread: I'm playing as Ganon against an mk. He has around 75% tacked onto their first stock while I still haven't taken any damage. He starts using one move, his nado. After crazy spam, I have 50%.
In the above example, it's pretty clear that the Ganon player is a better player in general than the mk player. The only way the fail player has been hitting the good player is with his nado spam. This is the kind of spam that I, personally, hate. When your opponent thinks the following, "WOW, somehow my attacks aren't working, so I'll just start spamming this until I hit." This is worse when people jump on the tier bandwagon and main mk...
The reason it's "ok" for some characters to "spam" is that they're not spamming. What do you think would happen to falco if he had no lasers? If diddy had no nanners? A character like falco's playstyle mostly relies on his lasers. Mk has how many bland sword attacks available? When an mk fights with 3 or 4 moves, it's called spam because the other player is too terrible to use their brain. Mk spamming is why mediocre players beat good players who aren't using mk. I can use mk just as well as any of my secondaries, or my main. It's easier to win too. Instead of winning with low% 1 stock or high% 2 stock I'll have a low% 2 stock, sometimes even a 3 stock if I gimp some less fortunate low tier character. I've never practiced playing as mk. Who needs practice with mk? You can pick him up with just a basic grasp of the game and win against more knowledgeable, more experienced, more skilled players.