Comment: What I would do...

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In reply to comment: This Happened With David Gilmour (see in situ)

What I would do...

If I were RP, I would appeal to the legal body responsible for adjudicating the dispute. After I win I would assume ownership of the domain name(s) in question.

Then, I would simply grant a license to the former "owners" of the domain name to continue using the domain for say $1 and an agreement to post any content RP wishes to post on the site.