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To be straightforward, just like the company wants the best participants in the campaign, it is the right of the Signature participants to keep finding the best campaign for themselves too.
As in some signature campaigns that update the rules to find the best members with high-quality contributions.
And it won't look at who is more loyal, but at how qualified the member is while in the campaign.
If there is no good development or just paying off the posting target without any quality improvement, there is nothing to care about.
And this also depends on how the developer wants the best participants and replaces them with other and more competent ones.
See how @Royse777's signature campaign gave special payouts to members with over 3.5k merits and higher minimum posts.
https://bitcointalk.org/index.php?topic=5419242.0and in the signature campaign @yahoo62278 uses a rule for selected participants to get 1 merit/week, if they cannot get it, they will be eliminated.
https://bitcointalk.org/index.php?topic=5415844.msg61057317