1. A method implemented by an information handling system that includes a memory and a processor, the method comprising: analyzing a plurality of posts included in one or more threads of an online forum, wherein the analyzing further comprises: identifying a main topic related to a parent post of the thread; selecting a plurality child posts of the thread, wherein the parent post is a parent to each of the child posts; identifying a plurality of child topics, wherein each of the plurality of child topics corresponds to one of the child posts; and determining a relevance of each of the child posts by comparing the identified main topic to each of the identified child topics; selecting one or more of the child posts based on the relevance of the child posts; ingesting data from the parent post into a corpus utilized by a question answering (QA) system; and ingesting data from the one or more selected child posts into the corpus.