It's a little weird that the person who wants data would send a link to the person who has it, but I guess it would make sense in some situations. I'm just so used to creating a link to send over to someone else, rather than having them initiate it.
Do you think this might be used maliciously by scammers? In other words, would this project facilitate password or data sharing the same way that LogMeIn facilitates screen sharing? I.e. as an unintentional result of the design.