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.
You should actively avoid having members know each other's places of work, addresses, real names, and any such similar information.
Hikes, drilling, fitness, literature seminars, and the like can all include social aspects. People can be social, but they have to protect themselves.