The more a web site can be automated, the better it performs.

A typical situation where automation helps in where page content is time-sensitive. For an event, the text “We are pleased to announce...” might need to be replaced with text like “The event was held...” when the event is over. The change might be forgotten by human page maintainers, but if the two different versions are created at the same time the changeover can be made automatic. This saves time and effort, and ensures that the web site is always up-to-date.