I barely play because I try and use gear and weapons that made the game interesting (ex. no Tentatek, Octo, Dual, 52, etc.).
I would also suggest, only because I sort of took this approach, trying to use simpler weapons until you've reached a level of confidence/skill/understanding of the game where you can effectively compete with the less popular weapons?
I rarely deviated from Splattershot Jr, 52 Gal, N-ZAP and the occasional Slosher until I reached S Rank, at which point I shifted my attention to all the other weapon classes I'd been hesitant to try out. I don't think a lot of people did this, but allowing myself so much time to practice with the weapons I did gave me a lot of insights to how other people use all the other weapons and I learned from playing against them how to use them effectively, so that when I finally picked up, say, an E-Liter or Heavy Splatling, the type of tactics I should be using when wielding them.
If you hadn't noticed, I'm also trying to shift your attention away from what abilities people are stacking, because as others have said it is really not that big of a deal, and probably not at the root of your problem. Best of luck!