I regularly receive the request of "how many times was <x> mentioned?" across forum posts, blog posts, and other content. Where 'x' here could be "redesign" or "site is down" or a specific product.
Or the requirement of "I need to find where that one user mentioned the site being redesigned, where's their comment?" and I'm aware of certain words used in that comment or forum reply.
How can I do this? This doesn't appear to be obvious in the search functionality, and it isn't evident in reporting.