I mean Greer was pretty clear about signalling his intent here, wasn't he? "Unless this court finds in my favour, I have no intention of ever abiding by any of its findings."
By insisting on filing further spurious motions in respect of these sanctions, it's just another way of running up null's costs. Greer should be forced to pay any costs for Hardin's responses to this bullshit as well.
Also, does America not have bank transfers? If I want to send somebody money these days, I just do a transfer from my account directly into theirs. Even the oldest and most technologically retarded boomer knows how to do this. You need the person's account number and their bank sort code, but it gives you concrete evidence of when and where the payment was made.