I do not have a problem with my work being downloaded by "a fan" as it were...after all, AO3 allows it, and I have taken advantage of that feature myself on occasion. The author remains the owner and is credited at all times. Would it not be true that whatever we have published already on LJ, it would be subject to the previous agreement in force at that time? Surely, a change of agreement would only apply to items that are posted on or after the date of the change?