I'm not affiliated with this company, but usually data collection like this is completely harmless. They will pick up things like hashed URLs you drag, the text

I'm not affiliated with this company, but usually data collection like this is completely harmless. They will pick up things like hashed URLs you drag, the text contained in the URL you just dragged, file type information (text? image? etc), number of interactions in a given time period, etc. And obviously, it's just for ad targeting.