Security Advisory: Links in messages may lead to maliciously operated websites that could track your IP address and reveal your identity, or they may contain harmful files. The DiscordLeaks team does not check links and cannot make any statements about the safety of following these links.
Some ways to protect yourself are:
If you are using the Privacy Badger or other privacy extensions, you may need to whitelist Discord and related domains in order for the images to load.
Essentially when a user uploads a photo to #activism the caption of that photo will be sent to a webhook on the vetting server via POST. It'll be parsed by the vetting server into a spreadsheet organized by Location, City, State. It knows to avoid duplicates and random messages that aren't locations.