How To Backup Your Data From Reddit (danielrosehill.medium.com)
TL;DR: Request it at www.reddit.com/settings/data-request...
There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.
Accounts which solely post advertisements, or persistently post them may be terminated.
TL;DR: Request it at www.reddit.com/settings/data-request...