'Topic' page aggregates all activity across d.o for a given topic, to make finding related information and activity much easier.
The purpose of the 'topics' is multiple including:
- a way for people to identify their expertise
- a way to aggregate content of interest to that topic from across Drupal.org
- a way to see what is happening around specific topic right now, where and who is active
- a way to aggregate people who have interest/expertise into one place so that they are contactable en masse (when their assistance is required)
- a way for people to find mentors/people with common interest more easily when they join our community.