  Previous work has argued that the DAMA annual modulation signal might be due
to electron recoils in plasma dark matter models. A specific model assuming
mirror dark matter and featuring collisional shielding of a detector due to
Earth-bound dark matter was put forward by this author [arXiv:1806.04293]. That
explanation predicted a low energy electron recoil signal in the XENON1T
experiment. In light of the excess of electron recoils observed in XENON1T, we
re-examine that model's predictions for both DAMA and XENON1T.
