On scientific conferences, oftentimes there are far more submissions for talks + topics than there are slots for people to speak. I experienced the same with DevCon.
To mitigate this issue, a common solution is issuing people a poster presentation and marking off some special area where all the posters can be presented.
In my current research of how the world of scientific in-person conferences works in general and reacted to Covid and digital conferences in specific, this is something that comes up a lot and that I have not yet seen in the Ethereum space.
Apparently, poster presentations are a thing if you have an idea / worked on something interesting but weren’t approved as a speaker. Some conferences even give the possibility to vote for the different posters, allowing to give awards for the best poster presentation. Maybe that could be something that POAP could implement as well, but that’s just a tangent thought.
From what I’ve gathered so far, this format also applies well in the digital realm - when the originator of the poster is available during certain time frames to answer questions that are submitted via Email or Chat. Essentially this would also allow for people to present their work without being physically present.
In the spirit of “more voices, more thoughts”, maybe this would allow for the exhibition of more ideas and interesting projects without stealing time from the main or secondary stages.