Final answer:
The role that can harvest knowledge from forum questions and answers is the researcher. Researchers ask questions, seek answers from people and other sources, and explore forum discussions to further their understanding of a topic.
Step-by-step explanation:
The role that can harvest knowledge from forum questions and answers is the researcher. Researchers ask questions to gain knowledge and then seek answers from people and other sources, such as forums, to find the information they need. They explore forum discussions to further their understanding of a topic and use the knowledge they gather to contribute to their own research projects.
For example, a student researching a specific subject can go to a forum dedicated to that topic and ask questions to gather insights from other forum users. By examining the answers provided by knowledgeable individuals in the forum, the student can harvest valuable information and incorporate it into their research.
Researchers may also utilize the links provided in forum discussions to access additional information sources that can enhance their understanding of the subject. This allows them to gather a more comprehensive knowledge base to support their research.