I ask this because I continuously encounter teams in Competitive who are manipulating the network and cause my teammates or myself to get kicked out of the match. This shit is completely bogus and if I report the individuals by name, I'm violating terms and being told I am shaming them. But they should be ashamed that they have to cheat to win. Checking their stats, they should not be where they are, nor in the win streak they have. But they have been able to climb the ladder due to kicking 2 or more enemy players, and it's bs that nothing happens to these individuals. TL;DR - Where do I report these cheaters besides in game so something ACTUALLY happens to them?!
When you believe someone is cheating the best thing you can do is use the in-game Report Player function: https://www.bungie.net/en/Help/Article/12960 Additionally, you may report suspected cheaters here: https://www.bungie.net/en/Help/Troubleshoot?oid=13967
The in-game report system, despite that providing no feedback at all.