To be absolutely clear, since depending on the number of posts per page, my last post might be on the second-last page now and my explanation isn't visible if viewing this last page, the blue coloration is NOT for marking progress.
Please don't impede any actual progress by claiming they're being worked on, when they might not be, and confusing would-be mappers into thinking someone called dibs when they're actually more than okay to do!
Cyartog959 may have just made the case for me to remove coloration if it will instead scare people away from doing them if they misunderstand its purpose.