This is someone who investigates another person through social media to find something out or have more information about someone.
This can be done anonymously without the other person finding out, or it can be visible by leaving comments or likes on posted images or videos.
References:
Glosario para entender mejor las redes sociales. Riial.org. Retrieved 6 July 2020.
Photo credit: Marcos Mesa Sam Wordley
Glosario para entender mejor las redes sociales. Riial.org. Retrieved 6 July 2020.
Photo credit: Marcos Mesa Sam Wordley