Very correct to raise the issue of "trigger happy" random reporting that has always been a feature of the global chats. Happens a lot particularly to legit teams recruiting and discussing gameplay.
However, without you knowing the background to circumstances, the intentions, reputations of those reporting systematically, do not judge those legitimate reporters. They are keeping the game chat clean, moderating behaviour and maintaining a modicum of order in an unruly setting. If only all responsible players took it upon themselves to care and to actually act mature then the global chats would be a much better place for advice, recruiting and general chilling out.
It's the snowflake brigade that liberally forgive all past contraventions and believe that its just kids having fun, that let standards slide to the point of chat being like it is. Have a backbone and report what you deem inappropriate and unsuitable instead of fearing counter reports on yourself. Finally just to clarify there is no "militia" network in the game, that's clearly ridiculous, how does that happen? No team has the reach, influence nor time frankly to do that, I think you have been sold a dummy for sure.