You do realize that sometimes people are gonna play who they pick regardless of which lane they go to? Some people like to try new things or have there own styles of using certain champions and you have to learn to respect that. You label it as instalocking and wanna get people in trouble for it when it's not even a reportable offense.
When I see people try to coax all the players to report someone because they played who they wanna play I report that person for abusing the reporting system and white knighting. I'm sure riot games isn't fond of that.
I'm not trying to flame you, but simply trying to get you to understand the flaws in your logic. It may annoy you, but your wasting riots time having them read bogus reports and you ruin your own fun by bringing negativity into the game at the start. Sometimes you gotta have faith in your teammates. What you can't do with a champion others may be good at.
It's like the people who wanna report players for feeding because they had a rough game when they had countless games themselves where they had a rough start. Teammates respond to positivity and respectful constructive criticism. There's been times that I've seen teammates calling there whole team "trash" or "garbage" and I would ask them to stop or even tell them if they apologize for there rude behavior I will not report. They usually respond in a positive way, but if they still act rude to everyone I would report.
It seems like the community leans towards reporting people just for fun when there's always a simpler solution that doesn't discourage teamwork in a match.
Sorry if I went off topic and rambled a bit, but you get my point.