[vlunkr]

I wonder what their game is here. Why is it free to share with 100 friends? I can't see that it would be any cheaper for them. Also, 100 friends? When would I ever want to share file storage with that many people?

[rid]

I think that they're trying to create a viral loop in order to attract advertisers to their platform.

[vlunkr]

You're probably right. They expect you to join someone's free group and then decide to pay for your own.