From their release notes page regarding this feature. Use chatgpt next time something please or pay me

• The imgur uploader is disabled by default at compile time. Users that wish to re-enable this can build from source with -DENABLE_IMGUR. We expect this to be a bit controversial but we believe this is the best direction for the project. [ℹ️]

  • The goal for Flameshot is to be a lightweight screenshot / annotation program. The imgur uploader is a program in its own right
  • The authors of Flameshot are increasingly privacy conscious. Having a misclick in a screenshot program accidentally upload sensitive data feels very risky.
  • We continue to discuss and iterate ideas for a plugin system [ℹ️]. When that is completed users who wish to have an uploader right in their screenshot program can implement this in a plugin
  • We will keep the imgur uploader code in the code base until plugins are ready
  • Please let us know your thoughts either way. This is not a vote, but we are interested in the communities opinion.