@username -- any reason text requests negative karma for @username if it is allowed by Who can request karma option.

-1 karma requested for @username

If the requesting user is a moderator or Auto-approve all requests option is enabled there will be no such message.

To request more than 1 negative karma at once karma value should be specified within a command.

@username 7-- any reason text requests karma 7 karma for @username.

-7 karma requested for @username

It is not possible to request negative karma for users who do not accept it. This is defined per user via Roles settings.

If a user does not accept karma Karma bot will give a warning.

Sorry, user @usernmae does not accept karma.

Multiple users and Slack Actions are also supported.

@username1 @username2 @username3 --

-1 karma requested for @username1
-1 karma requested for @username2
-1 karma requested for @username3

In addition to the above, Karma bot for Slack can understand HipChat Karma bot format:

@username---- – add 3 karma points (count(-) - 1, 5 max).

-3 karma requested for @username