Complaints about how the team is playing, is not the same thing as flaming.
There's a lot of crap going on with how players accept negative responses to their gameplay. And immediately accept anything other than GJ!!! as flaming.
If a player is making a reasonable complaint about how the team is playing, then it's reasonable. For instance. "You guys really need to focus a single target instead of splitting on too many champs." If there is to be any sort of communication, then you have to be willing to accept negative responses as well as the positive. As long as the negativity is said to try and make you play better instead of trying to tear you down aka tilt you.
If the support is saying, "You're playing too aggressive. You need to stop trying to 1v1 the 7/0 Vayne while you're at 3/6." They're not flaming you. They're telling you something you should already know, but apparently you're ether too arrogant to accept that you can't win a fight....or just dumb.
Same thing, if the ADC is telling the support that they're playing too passively and that they've missed a few kills that you could have gotten if you had played up a little harder, that's also not being a flamer. They're trying to win and they want you to play better in order to win.
If you guys are so sensitive that you're willing to throw the game because of one person telling you what you're doing wrong, you need to grow up and thicken up your fragile strawberry vanilla skin.
These items still contribute to your damage, but at the same time give you some defensive mechanics so you won't die over and over again in lane.

items, poke damage and etc
"Why did u tower dive at level 3?"
"I thought you did damage"
"omg stfu flamer top lane"