So I've spent some time on L5, and I don't want clues or anything, but the message:
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Challenge V
The guardians at Giza Base have no way of identifying you. As such, your presence is considered an intrusion. You're hereby strongly advised to make yourself visible before it's too late.
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Is really puzzling. Stuck on it for 5 days now. Tried editing my profile, fiddling the URL, viewing the page source etc.
Are you sure there isn't an error? (other than in my thought processes)