1) I would welcome some system for submitting corrections on waymarks. I often see misspellings in titles, waymarks listed in the wrong states, or poor choices of default images. I hate to e-mail people and ask them to correct. Sometimes when I do, I never hear back, anyway.
I spend a lot of time on wikis, and sometimes with Waymarking, I miss that flexibility. It's clear that a complete wiki-ization of Waymarking would be a disaster, but adding in some sort of review mechanism seems good.
2) I could give or take a points system, as long as it isn't presented as *the* "score". One of the things I like about waymarking (and geocaching, for that matter) is that players can choose their own scoring system. Maybe it's categories in which waymarks are posted, maybe it's categories in which waymarks are visited, maybe it's "You Are Here" signs posted, maybe it's number of countries waymarked in, etc.