It is simply not possible for Confluence Questions to be considered a useful product by even the most generous definitions.
The reason is simple: it only supports exact-matching text search _on titles_. There are a host of other usability problems that are so bad that they render a giant negative impact on information retrieval and actively steer Q&A traffic to repetitious and ephemeral tools like Slack.
But the lack of a functional search engine indexing the Q&A content with a high-performing notion of search relevancy is such a show-stopping, egregious defect that even all the other egregious flaws can be ignored by comparison.
It’s not a subjective debate at that point: just a factual defect of such severity that any misguided reports of the tool somehow miraculously being even marginally useful for someone have to be ignored.
I thank my lucky stars that Stack Overflow offers competition to this with a real search engine.
[0]: < https://community.atlassian.com/t5/Questions-for-Confluence/... >
I am on a committee in my workplace that deals directly with Confluence customer support to roll out changes to our internally deployed Confluence & Jira instances, and I know first hand from dealing directly with Confluence that they _intentionally_ only support exact matching _on the titles_ for searching in Questions. Really appalling.