Developers have been known to ban players falsely (not distinguishing between game bans and PUBG acct bans), and even had to compensate players who were falsely banned. As highlighted by the article.

Developers use illegal fraudulent copyright claims to take down and silence negative reviews.

Developers have a team in-game who uses their position as developers and server operators to gain an unfair advantage over teams in the game up to and including banning them from the servers.

Guy describes the game as "story, mediocre, interactive-movie" in a thread for describing the game in 3 words, devs ban him from all discussions.

Deleted negative reviews of the game, or annoyed the reviewer in the comments to get them to turn it to positive, according to community manager.

Developer using game bans to punish people for bad reviews or playing competing games. Developer has also taken assets from Socom games to use in his own without licensing.

Game developer has used game bans as an attempt to blackmail users who leave negative reviews or call out the game as a scam or asset flip into changing their review to positive and removing critcism.