This is the crux of it. Move the task of identifying issues most worth of follow up from the proposer (and the general thread) to the review manager. I could see a couple of approaches:
- With a three week review, the review manager could do a summary at the end of week one and week two of the particular issues already brought up that deserve more attention. This could be a formal process perhaps summing up what the core team thinks most needs review.
- No idea how feasible this would be but it would be nice to be able to “subscribe” to a concept at the pitch stage so that you could get a personalized call to action when a pitch enters review. For people who participate irregularly but still have valuable perspectives that might be a nice way to draw them in.