@mistcrrgpsa, @Andrew, this is now possible (in beta) thanks to the awesome folks of the Discourse project. Special thanks to @angus for all his fantastic plugins and the mentoring he offered on this enhancement!
You can see the map at https://forum.opendatakit.org/u/user-map. You can also navigate to it by clicking on the hamburger menu and clicking on Users:
You can set your own location at https://forum.opendatakit.org/my/preferences/profile. You can also navigate to it by clicking on your avatar in the upper right corner, then clicking on the settings gear:
You will then click on "Profile" in the left hand bar, scroll down to Map Location and set the location as you want.
Keep in mind that others can zoom in so I wouldn't recommend using your home address! Set map location to a local landmark, your city, your county, your state or even your country to preserve your privacy.
I hope everyone enjoys this feature. Please share any feedback here! The plugin is still in active development and has some limitations. You have an opportunity to help shape it by providing your ideas or even make improvements to the code -- that's the magic of open source .