The licence surely implies any discrimination being forbidden.
Proof by contradiction: if someone uses this software to discriminate against an apparently non-marginalised community, then that community would be being marginalised in at least one way (by this usage), thus making that community a marginalised community, thus making that usage against the licence.
Therefore no one is allowed to use it, ever. This thing runs in the web browser so it clearly marginalizes people who don't have internet access, as well as people who disable JS for security reasons, among others.
Proof by contradiction: if someone uses this software to discriminate against an apparently non-marginalised community, then that community would be being marginalised in at least one way (by this usage), thus making that community a marginalised community, thus making that usage against the licence.