What are the advantages of streaming my live stream via Youtube?

Youtube offers the following advantages:

• Free service
• No installation of any software or “Flash plugin” is required
• Youtube operates with a 99.99% reliability rate
• Youtube is preinstalled as an app on around 3 billion smartphones worldwide
• There are no ads during the live stream
• Unlimited number of spectators
• Chat function possible
• The live stream will be recorded automatically and is available on Youtube for an unlimited time if desired