Network settings and some other cvars that people tweak can be debated, but the config on the right gives an undeniable unfair advantage to that player.
In most leagues/games, the cvar(s) which allow the removal of trees/leaves/bushes are locked, and in the event that someone is caught using external programs such as rivatuner to get around these cvar locks, they are banned from that league.
Cheat sites also provide this service (the removal of trees/leaves/bushes).
The problem with Dirty Bomb right now is, these cvars are not locked - but does that make it right?
Hopefully Splash Damage will lock these cvars down soon (ideally in the next patch).

