Yes. You can report any missing or bad info right in the course info drawer that pops up when selecting one. There is a button for sending corrections with a few fields but you can also just make a comment.
yeah i am pulling from OSM. I can probably draw those polygons. It;s been an OK source for number of holes etc but I need to cross reference to get other detailed info
probably and old site that now redirects.. you can report issues right on the site. community reports are going to be the most reliable for me over time.