i think this whole idea (which i've heard over and over again) that the dyestat model is anachronistic is overblown. especially at the HS level, kids/coaches simply are not going to be using twitter/fb presences to satisfy the interests of fans. and that's probably a good thing. should an 8th grade or frosh phenom be expected to use twitter and fb to share post-race thoughts with fans? no way.
the action in hs is also happening way more spread out and big performances/match-ups can happen in unexpected places (compared to college/pros), so there's really a need for a centralized news location people know they can turn to to see what is going on, rather than hunting down meet results themselves.
and while i think facebook and twitter have taken away the uniqueness of dyestat being the only real option for elite and sub-elite high schoolers from around the country to get to know each other and talk, there are still benefits to forums.
if you're a kid who isn't super into running but wanted to check on the recent times of some other team in his conference, looking up results on dyestat could really suck you in if you stumbled across the forum discussions on your league's thread or state's board. i know that's what happened to me, and i'm sure countless other people. we would not have sought out lots of running information or followed anyone on twitter or friended/followed an elite on facebook. we just wanted to check on some local results and then saw how awesome dyestat was.
but i think without dyestat and its forums, that kid just finds the meet results on milesplit or espnrise,, looks at them and moves on.