Abstract : To understand digital traceability we need first to measure the impact of customization procedures that modify publishing protocols and reverse the priority between types and peculiarities. In this environment, the user manages its space more than it produces original content. Automatically generated by any of his activities, the traces he leaves are mostly unintentional. Treated as symptoms, they rob him from the meaning of his actions. Treated as quantitative data, they detach and disintegrate themselves in algorithmic calculations. Thus indexed, the data-individual ends up in a world without forgetting, where everything is documented. The reappropriation will consist in changing the logic of storage into memorial writing. This requires first restoration of a right to disable our traces in order to avoid the effects of contextualization. Then practices of adoption must be developped, to allow users to transform deposited traces into collected traces. Not to be locked up in his own traceability, the individual must finally resort to mediation of memorial collectives, to give documentary or heritage dimension to his traces. Developping the digital skills means anticipating his traceability instead of suffering it : make trace, to substitute the identity by a full exercise of a presence.