Open source is defined by Wikipedia as “a development model promotes a universal access via a free license to a product’s design or blueprint, and universal redistribution of that design or blueprint, including subsequent improvements to it by anyone”.
Essentially, an open source is like Wikipedia in some ways. It is easy to edit a page of Wikipedia.
My group discussed how it can be a good thing as well as a bad thing. Many people can edit wrong information. However, they can also place false information on a page or disturb software that is needed.