SWF is OP because they have no weaknesses

No, this is the same thing as Dead Dawg locker flashlight save squads. Just because they were "rare" doesn't mean they weren't a problem. Same with SWF. If they're at a certain level, the killer just can't do anything to win, and not because they're just THAT good, but are good enough to abuse the brokenness and the survivor sidedness of the game. There's no map they won't do well on, no build they can't make do with, no killer who will give them a challenge, bar Nurse/Blight playing near perfect.

There is always a weak link. You don't always have the time to find it, as indicated in the other million threads related to generator completion speeds.

Teamwork is communication. It happens in the moment and it happens before the event. Additionally, purporting that the only benefit or majority benefit of SWF is teammate reliability is nothing but an indication of the ridiculously over powered potential existent in the SWF concept as applied here. Simply put, its people that play a lot of survivor flexing how few of the tools at their disposal they need to use to dominate in simple chases; due to their smaller hit boxes, short generator times, second chase mechanics, and so on. You'll have to play smarter to over come the advantage they have.

To address the original post, I find their weakness to be primarily egoism, and making use of that weakness to benefit your game play demands the same toolset you'd use to manage an individual afflicted with such traits in the real world. The opposite of altruism, to be direct.

They won't nerf it, its the primary income stream.

This guy gets it. 4 Survivors exploiting how good that side ACTUALLY can be will always feel so much worse than 1 Killer doing the only things they can to exploit Survivors….slugging/tunneling/camping. It'd be different if Killer players were not conditioned into realizing how hard it is to down very good Survivors. Eventually all Killers just say F it I'm tunneling this person out as they weren't turning on DBD to sweat. People want it easier and since that ease doesn't come from naturally going after other Survivors for most, that isn't what they are going to do..

I agree with this sentiment. You can't perfectly balance it and I've always understood that, but there are still GLARINGLY bad issues that could easily be fixed.. One that comes to mind is the fact that BHVR made the anti-camp hook mechanic STOP the bar if another Survivor is near.. That's so stupid as NEW PEOPLE (who the mechanic should be made for) have no idea being close to us while on hook with Killer in our face, completely blocks the mechanic.. How they don't think about this stuff, I'll never understand.. It REALLY is simple..