When I get teamhit by ranged I tell them to target enemy ranged.
During balance discussions they always tell me I have to hide in a building and wait for the ranged in my team to kill enemy ranged. Then they don't do it, and I report them for hypocrisy.
When people teampunch/kick me, I report them and jump with an upblock. That's called a friendly report
I have yet to remember a time one of my reports led to someone being kicked undeservedly. Don't be mad a 1/5 reports.