Here’s my reasoning: I assume all files in my Dropbox get synced correctly; if something goes wrong, I’ll be able to tell by the red warning icon anyway. Why would I want the green checkmark icons? They only add visual noise.

@tubbo That’s still possible when the green icons are hidden: no icon means it’s synced successfully.

For larger datasets, such as Logic Pro projects, you can tell exactly which files have been synced so you don't accidentally open up/save and corrupt your projects.

Agreed. Ctrl-Click works on the rare occasion that you want to right click in an OS X app.

I use the two finger click.

Or just two-finger click.