Previously we had Pick order and the expectation and attitude in ranked was if you cant play 1 champ in all roles you would be constantly flamed and trash talked in games you got your off roles in. You would see a lot of LEARN ALL ROLES BEFOR RANKED TRASH NOOB. People who cant play all lanes have no place in ranked. KILL YOURSELF JUNGLE/TOP/ETC is EZest role. etc etc etc etc.
So, problem is now that we have a nice system that gives us our main 2 roles a majority of games, but we still have occasional off roles due to fill. Personally I don't hate this system as there's is an easy way to get around it, enable fill protection by intentionally playing a game of support, your suddenly have a very predictable pattern of fill to main role games, and your almost always going to be grabbing support for said fill games.
I would love to see a Fill indicator in lobbys so folks know if some one got placed into their role via auto fill, I'm optimistic that that would allow for more trades but then again the community here can be excessively selfish at times so who knows what it would actually accomplish. I do know from teambuilder that long que times kill the que, many folks are happy to wait longer but more will draw the line in the sand if its to long.
If your riled up easy, use mute until your calm again then you can unmute and see if the toxicity has stopped. "I'm getting tilted by this toxic jar, I'm gonna mute him till I calm down or gets off my back. -insert a non toxic teammate here- let me know if he stops flaming."