I'll have you covered soon, follow @charlieshrem (yeah, i'm aware how ironic the recommendation to follow someone is) and he'll be announcing it when i'm done developing it.
I shall be vague on the topic of what "it" is, but "it" will give you just what you want and more.
Following. Is it done already? I agree with @jacobt, following in the beginning is manageable but soon becomes unwieldy. A blend of both would be nice. A self curated streem (see what I did there?) which filters the chaff from the wheat, top level comments and contributions within a topic of interest of people you follow and then complemented with the general population would be a nice to have.