This command will use the short username (ie: bsmith) instead of the full (or long) name (ie: Bob Smith), by default in the network authentication dialog, ie: when connecting to servers. Resulting in one less step/time saved. Simply change the boolean value to "NO" (ie: "... -bool NO") to revert to the system's default behavior.
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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
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