This case study was written as a collaboration between Drupal Association staff and Technology Supporting Partner Distil Networks.
Drupal.org is the home of one of the largest open source communities in the world. We've been online for more than 13 years and collectively we build the Drupal software, provide support, write documentation, share networking opportunities, and more. The open source spirit pushes the Drupal project forward, and new members are always welcome. It falls to us to maintain our community home and preserve the welcoming atmosphere that leads people to say,"Come for the code, stay for the community."
As stewards of Drupal.org, it's our responsibility to give the community a voice and welcome everyone who wants to participate in the project. At the same time, there are bad actors who would take advantage of our open community and platform for abusive purposes.
Drupal.org long-standing presence on the web has given it authority in the eyes of search engines. The site hosts millions of pages of content - all generated by our users. This combination of authority and open access for users to create content makes us a very high value target for phishers and spammers.
Spam is a nuisance to our existing community, devalues our project to the newcomers we are hoping to welcome, and left unchecked could degrade our search presence.