a few things...
For glory isn't really "competitive", at in the sense of preparing a player for offline tournaments and such. Final destination only pretty much caused for glory to be shunned by actual competitive players who view it as insulting due to Nintendo basically believing the dumb stereotype that "competitive players only play FD only " which is so far from the truth it's not funny. If you do run into some actual competitive\tournament players, they're likely going to be sandbagging you, and not playing seriously. If you seriously want to get better, go to anthers ladder, not for glory. Players like myself go to for glory 1v1 simply because we "enjoy " it more than for fun mode, but we're well aware of the fact that it in no way really prepares us for anything we'd see in a real competitive/tournament environment.
Second...using items in for fun isn't "cheating/cheap", the whole point of for fun, and items is to not be serious in matches, "cheating" would imply that a player is doing something that gives them and ONLY them, an advantage, hacking to make yourself invincible is cheating, being lucky because a super star spawned right next to you in an item filled match where it could have spawned anywhere, Is not cheating.
Also you'd do well to abandon the mentality of stuff that might be annoying or aggravating that beats you being "cheap" , you're going to find players who frame trap you hard where your in a situation for them to hard punish you, you're going to find folks who projectile camp you to hell and back forcing you to sift through a wall of incoming projectiles, you're going to find players who counter pick you with a character who does extremely well against yours and shuts down most of your characters options, you're going to find players who always pick high tiers, who always use their characters safest move(s) on you, no matter how "boring" and annoying to you it might be.
None of those things are "cheap", it's all fair game, and it's your responsibility to learn how to handle it, whether by picking a high tier or counter pick to their character yourself, or using any of the tactics above, from frame trapping to camping to heavily abusing your safest moves, it's all fair game and it's how competitive gaming works, if it's part of the game and either player is capable of it, it's not "cheap".
Sure some things might be overpowered, (pre nerf bayonetta) and maybe in need of fixing, but until Nintendo does, it's fair, likewise that should only happen in extreme cases, something like projectile camping, which has very well known counters(characters with reflectors) shouldn't be nerfed just cuz it's an annoying to fight against.
*whew* that was a pain to type up on a phone.....
To be fair, plenty of times I've complained about stuff cuz I was frustrated, but at the end of the day I accepted the fact that I was just outplayed by my opponent.
