If you were supposed to get an email from the forum but didn't (e.g. to verify your account for registration), email Wes at stararmy@gmail.com or talk to me on Discord for help. Sometimes the server hits our limit of emails we can send per hour.
Wanna skip the media manager? Apparently a plugin exists that would make adding images to a wiki page as simple as CTRL+V.
In most cases images tend to live in the namespaces they're used in and for spaces like characters the images can and already are occasionally moved by mods into the year-and subfolders so it shouldn't be an issue.