This is neat! But, it seems a bit disingenuous to say I'm looking at experts, as opposed to people who like to talk about something. My expertise is industrial automation and connectivity for example, but I come up when searching for vue, a javascript framework, just because it's a tool I like to promote since I think it could use some noise given react's popularity. Step 2 seems like having someone or something reading through comments and assigning expert status to profiles.