The discounted devices are obviously an incentive for developers to continue developing, but also something of a reward for credible community involvement from non-developers... for someone to develop an application only to then refrain from all and any involvement with the community suggests they're not entirely deserving of a discounted device, or even seeking to obtain one.

The guys at Nokia/Maemo can't track everyones involvement within the community, and to be honest I think they've done a good job so far of trying to capture as many metrics as they have. However from reading this thread I get the impression that some people think involvement here, at t.m.o, is the be-all and end-all of community involvement and is sufficient to obtain the latest device with a pretty decent discount. Sadly they're mistaken.