We're considering both, but mainly listening to the "community voice" right now :)
Linking to data on other sites (including archive.org) seems like a better way to go, than pulling everything in (as you mentioned, storage reqs become a challenge fairly quickly)
We really had to step on the gas with this one. There has been just so much reverberations in the photo community that it became clear that it needs to be done (and quick).
This is a great effort! But yes, manual adding is slow, so the way is likely to crowdsource/automate it.
There should be plenty community interest and enthusiasts to keep the good thing going.
The 2 things we need to save are:
1. content (archiving is being worked on)
2. community (there needs to be a concentrated effort to bring everyone to a new place)
If all users requested their data and then pooled it together, we can build a simple version of DPR to keep things alive. And maybe even build it into a new/modern version. I've put together a quick google form to see if people want to try this plan https://forms.gle/2aGQtnQGw6SJCqVE7
Obviously there's much more content than user data.. but i'm sure we can keep it alive too
people who give you feedback are the "fans", core users, who you're supposed to make the happiest and who'll stick around the longest, - says the old wisdom.
You should also have real-time audience feedback powered by MeetingPulse. MeetingPulse: Make your events interactive! http://meet.ps
(I just thought if you make the plug outrageously shameless it will pass for a joke, still being a plug though)
Jokes and plugs aside, it can produce a graph of audience's per-moment sentiment, that can be overlaid on the transcript/video, so you know how they felt at each moment of the talk.