@dascandy “Personal data collected in the statements of support cannot be used for any other purpose”
https://citizens-initiative.europa.eu/how-it-works/data-protection_en
“Both the group of organisers and the Commission must destroy all statements of support signed for a given initiative (and any copies) by whichever of these dates comes first:
1 month after the organisers submit the initiative to the Commission
21 months after the collection period starts.”
https://citizens-initiative.europa.eu/data-protection-guidance-question-16_en