Yes I did this because the information is cached. An admin should be able to see invisible users but in order to display both there would need to be two cache fields for the each set. I didn't think it mattered that invisible users were "last seen" because the information is not accurate nor up to date when assembled. Also, I believe if I do change anything I'll be hidding various boxes from invisible users since they don't want to be seen they shouldn't be able to see anyone else.
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