I need to make it so players can report other players who curse or other bad stuff. So I would start with:
/scoreboard objectives add report trigger
Then people type to report:
/trigger report set 1
But then how would I put this in? Ideally, they would be kicked:
/kick @a[score_report_min=1] {text:"You have been reported and kicked"}
this did not work! Am I doing something wrong? What can I do?
Best Answer
This might do what you want just in a different way. (This I did in 1.8) You could give everyone a book with a command. This could /tp them to a room.
Under the floor of the room hide these commands connected to a clock of your choice(I used a hopper clock).
Have them write what they want to report in their book and place it in a trapped chest, connected to a hopper that places the item in a larger chest. Then have them push a button to report.
.The report button should have 2 command blocks hidden behind it, one that clones the chest under the hopper to another room, and another that tells the player the report was sent 
.You could then go to the room where the chest was cloned and read the reports, but you would have to kick or suspend the players yourself.
/testfor @p[r=10]This will test for a player within a radius of 10. If a player is within the radius a comparator will activate this command./give @p minecraft:writable_book/say @p Report Filed. This is optional, but if you wanted to you could have a tellraw command that tells the owner of the world when someone is reported./tellraw (name) Someone has been reportedit would look something like this:https://www.minecraftjson.com/