- some of the users are simply forgetting to cash in their rewards, which are "stuck" in the rewards pool
Probably many of the users who abandon their account (of forget/loose) also have haven't redeemed their rewards. Will their rewards be forever stuck in the rewards pool, and does that have any long term consequence for the functioning of the rewards pool?
If they don't cash in, yes.
I don't see how.
.
As far as I understand, if rewards are not claimed, they remain in the rewards pool. Otherwise I couldn’t explain its irregular variability. So, as long as you don’t cash out what’s in your rewards balance, this should count towards the rewards pool as well.
But I might be wrong.