making teaming bannable will just create an even bigger mess so I'm against that, but what you said is true.Trying to be part of their team is something that won't work for 2 different reasons:
1. They won't accept (90% possible)
2. If you team with them, you are agree with teaming, so it means that you doesn't really care if it's fair or unfair, only if it's bad or good for you, and that's not what I am saying, I say that It's so unfair, not for me or for anyone, It's unfair for everyone that doesn't have a team as big as the other they are trying to fight against.
Well, If you want to bowspamm or debuff them, nice. But your KDR (Kill Death Ratio) will get seriously affected. And if you want to buy diamond armor, with a lot of apples, just take into a count that there are more minigames you will probably want to play later and you will (90% sure) want to spend points on advantages for you, and take into a count that if you buy diamond armor, EVERYONE will focus you, not only the team your attacking. It's so common, everytime the people see a full diamond, they try to kill him even if he/she dies trying it, and I think you, me and everyone know that because everyone may have suffered it.
You can annoy them all the time you want, but take this into a count:
1) When you attack them, more peple will attack you, not only that team, It's FFA and everyone cleans when they have a chance.
2) Your KDR will get so bad and your stats will be worse.
So for all that things I have told you, and if you understand and agree with me that teaming is so annoying; you should know that buying diamond armors or joining that club is not the solution.
In other minigames like SkyWars, you can join the hacker or camper club if you want too, but it won't help on stopping the hackers and campers in SkyWars, for example. It doesn't work. So the same will pass with FFA, maybe you will feel good and even happy when that teamers don't kill you because you are in their club (if they accept you) but it won't make it more fair, it will be a lot more unfair.
Greetings.
Tbh in my opinion FFA is feces anyway and beyond saving, but there might be some improvement to gain by adding more chaos to the game making it harder to team, maybe all swords could have sweeping edge for instance, idk, something like that.