With millions and millions of players and a rather famous array of stream stalkers and cheaters, PlayerUnknown's Battleground is still coming to terms with the fact that it has a proportional number of cheaters as lawful players. Now, PUBG Corp. and Bluehole are allowing players to use the replay feature to report other players for cheating and use of mods.
The previous system more or less required you to be killed by a cheater. It also presented a weird looping issue where video evidence had to be provided alongside a report with the developer often asking for it outside of the client itself, which then could be denied because the report was not made within the client. This made it difficult to punish cheaters, even though there are 1.5 million players already banned from the game.
The update that includes the new replay system also adds Desperado and Biker items to lootboxes for test server users, though the items will only be usable within that tester server. So you won't be able to take them out and use them on your regular server. Which is a bit of a shame.
That said, it's about time PUBG had a more reasonable way to handle cheaters in-game, as cheating is one of the biggest problems people have with the game.