Can there be anything sillier than trying to amass knowledge about knowledge? Methodology is one thing. You can talk about the way people go about trying to get what they think is knowledge. Trying to get knowledge about something is also OK. It might not be actual "knowledge" but at least it's not circular logic. There's some exchange between observation and your thoughts about what you observe.
But pursuing knowledge about knowledge itself? How would one know if one's got it? How can you even go about getting it if you don't know what knowledge is in the first place? How would you know about the quality of your knowledge of knowledge? Epistemology is an awfully silly endeavor, if you think about it.