On the mapillary website I don't have a possibility to change my e-mail address, I have to ask the help desk to do this (which unfortunately still has not happened, my mail account will be deleted next year). Why can't I change this myself?
Related question: is it possible to skip registering my email inside the EXIF data? I recently uploaded an image - originally made by the app, to have the full resolution - to commons and see that my email is showing in the exif data and thus viewable on the upload page ( https://commons.wikimedia.org/wiki/File:Goudsche_Lichtfabriek_2016_-_Mapillary_(YSoEhcVDXXGIgACgmCw2Xw).jpg )
Sorry we're a bit slower over this period. Happy to say that changing email, username and more in the profile is actively being worked on so this will be a lot quicker to do in future.