the server was already reported to gameservers. better to report to as much as possible to get it shut down.
well if bohemia doesn't care about server integrity, well then the game is a lost cause. it's a minor thing considering they're working on new bugs to introduce to the game.
as a client, there are no other ways to report other than anecdotal and screenshot evidence. there is no information that we can get prior to being kicked, so that is silly.
-"i doubt they take serious actions without any solid evidence "
server logs.