Abusing game changing massive bugs (tunneling through walls) by (top) player(s) is an absolut no-go

I am sorry to write this down, but I have to:

I've watched a stream yesterday where one of the top players was abusing the tunneling bug massively in a ranked game. Now, his explanation was "It's in the game, so I can use it". I am sry for everyone that thinks like that. Everygame has bugs and unintended interactions etc. But there is a difference between using a bug unintentionally and using it for your ranked games to win. For example there where several bug ins Overwatch in Diablo 3. People exploited it and got banned, since it was a clear abuse and attempt to climb the ladder.

Now, if you do these sort of things in a non-ranked match it would be alot different. But bug abuse is (at least in EVERY) other game a bannable thing (usually seasonal ban if it happends the first time).

Now, I don't want this player to be banned, but just spread the awarness of all players: If you come across a bug (which gives you a huge advantage), please refrain to use it in your ranked games. No one wants to play vs. a bug abuse nor cheater.

Thanks. -Gleipdonir