Serious question - what can we do to lower these barriers to entry? Friendlier community norms? Documentation / tools? Social stuff (groups, meetups, etc?)
I'd love to hear people's experiences on contributing, and your honest feedback. I'm one of the "core" members of OSM (I maintain the iD editor) and we're always looking for ways to improve the new user experience.
> Personally, I think a good intermediate step will be to embed better and more automated review processes.
I agree! For now, most review is done manually by volunteers. We're looking for ways to make this process more efficient.
If you haven't already, check out the OSMCha changeset review tool: https://osmcha.mapbox.com/
It runs some checks against every changeset as they occur, and presents a newsfeed-style list for anybody to review. It also has filters, in case you are interested only in certain geographic regions.