@Monotoko
I also would like to have this account removed. Have to respond to this thread, as there is no option available in account settings, most of the users apparently cannot DM even moderators or administrator(s) since the recent changes and my answer to the DM you sent to all users about that problematic user seemingly went either unnoticed or wasn't received at all to your account.
Also adding to the above about stripped rights, the sole contact form found in
Terms and rules is inaccessible (or broken?) currently as it gives "You do not have permission to view this page or perform this action."