An announcement on Battle.net has details on new reporting options for Heroes of the Storm and a new penalty for the toxic behavior some players exhibit. It's possible these updates will come today, as there is an unconfirmed expectation that the new Rexxar character will be released this afternoon. They outline new ways misbehavior can be reported, but reassure players they understand that some unusual heroes may generate complaints, like Murky feeding or Abathur AFKing, and that that they will take these play styles into account. They also explain how bad actors will now be "silenced" when appropriate:

THE SILENCE PENALTY
Following our next patch release, any player who is reported multiple times under the Spam or Abusive Chat categories will, after investigation, receive a silence penalty. While this penalty is active, the silenced player will find that their ability to chat with others is greatly limited.

Silenced Players Cannot	Silenced Players Can
Use Allied Chat in-game Chat in Hero League Draft Lobbies Chat in General Chat channels Chat in custom chat channels Send Whispers to non-friends	Use Party Chat (with invited players) Create, Suggest, and Request to Join parties Send and receive friend requests Send Whispers to friends Reply to Whispers from non-friends Issue in-game Pings

The first time a player is silenced, their chat will be restricted for 24 hours. This duration will double for each silence penalty received after the first, and there is no maximum. This means that players who receive multiple silence penalties may find themselves unable to chat for a very, very long time.

Silenced players will be notified of the penalty’s remaining duration each time they log in to Heroes of the Storm, and a new icon will be displayed on their player portraits in the game’s menus to indicate their silenced status to others. Players that are in-game when they receive a silence penalty will be logged out at the end of that game, but will still gain any XP, Gold, or Ranked Points earned during the previous match.