Sunday, July 9, is the Day against DRM. The Document Foundation supports the global campaign led by FSF, to raise the awareness of issues related to the so called Digital Rights Management software. As any other proprietary technology, DRM is killing user freedom of choice, and should always be avoided.
LibreOffice users are fighting a similar battle when they are promoting the ODF standard file format against the OOXML pseudo-standard, and they should be amongst the first to support the Day against DRM on social media or by educating their contacts.
This is FSF campaign website: https://defectivebydesign.org/2017-dayagainstdrm-call-to-action.