Public user page
As discused on https://forum.geocommuns.fr/t/contacter-un-contributeur-panoramax/2126/3 let's create a public user page, URL being https://[INSTANCE DOMAIN]/user/[USERNAME] e.g. https://panoramax.openstreetmap.org/user/Patchanka
Information displayed
Some ideas:
- contact (OSM userpage / email address / internal message (?))
- contribution stats
- leaderboard ranking
- badges (rewards for contributing)