## Supplement 1 ##
- Supplement 1A: Explanation to the potential participants about the Instagram donation component before providing assent.
- Supplement 1B: DDP download and upload instructions as presented to the participants.
- Supplement 1C: DDP download instructions according to the Instagram website in May 2022.
## Supplement 2 ##
Supplement 2 provides an overview of account characteristics and an overview of the types and frequencies of Instagram activities. The activities concern all activities in the 110 accounts during the 32-week period of the research project (November 2019–June 2020).