I like this idea. It'll be difficult to convince the best and brightest to start using your site when they have their pick of the entire internet. Tell them that you have a space already prepared for them, with a curated list of all their previous work... might make it more tempting for them to add to it.

And don't call it "intellegacy." When I read it the first time I pronounced it "intellajesse" because I was thinking of "intelligent", then I re-read it as "intel, legacy."