I remember CM yahoo once said like "slots in campaign is not a right but a privilege". If you agree on this, then I guess long term holders deserve slots in campaigns.
This doesn't make sense.
Nobody "deserves" a spot for the very reason you just mentioned: its a right, not a privilege. You should think of it from a campaign client's point of view: intriguing, good, informative posts sometimes lend to somebody's decision to click on a signature. "Bitcoin holdings" do not. They can't be identified in every post, nor should they. Its the post itself that matters.