> extracting data from profiles that opted for not being public
The tool lets you download the contact info of your friends, which you should be able to do anyway. In fact Facebook tries to trick its users into thinking they can do this with their data takeout option, but the downloaded files don't actually include any of the contact info for your contacts. Which makes zero sense, considering the entire point of Facebook is that it's a digital rolodex for storing your friends' contact info.
The tool lets you download the contact info of your friends, which you should be able to do anyway. In fact Facebook tries to trick its users into thinking they can do this with their data takeout option, but the downloaded files don't actually include any of the contact info for your contacts. Which makes zero sense, considering the entire point of Facebook is that it's a digital rolodex for storing your friends' contact info.