What are some MeFi usernames which match their users' expertise? For example, physicsmatt comes in to set things straight regarding physics posts. And backseatpilot can be relied upon to supply intelligent aviation-related info. Who else comments pretty much exclusively on topics represented by their username?
I have expertise in X, but I don't care about A-W, or Y and Z, so I don't check the green very often. I also just asked a question about F, and I'm sure there are F experts that steer clear of the green for the same reasons I do. AskMeFi moves fast. Faster than ponies? [more inside]
What if you really could page users -- alert them to a thread they would interested and/or helpful in?