Facebook already has traction, and if push comes to shove can anonymize their data so it is at least still somewhat valuable.
However, the window is closing for any new social networks to get started, because the startup costs are simply too high and you can't growth hack like you used to.
What I am saying is that it is quite reasonable to assume that Facebook will be the last social network out there, that they will survive and no new competitors can emerge. If any hope of competition gets removed, then that benefits FB.
This is very ironic because one the the complaints of the EU against companies like Facebook or Google is that they are monopolies in the advertising space, and then they passed a law that will have the effect of force it their competion out of the market place.
It’s a real shame that no one is really covering this aspect of GDPR.
Are you saying that GDPR puts a limit of between 10 and 500 on the number of companies you share data with, or are you saying that it's impractical to share a constantly changing list of 500 companies with the user?
The latter seems easy to do: Just create a webpage and keep adding the names of new companies. Email a link or the list to the user as needed. Do I misunderstand?
But IMHO that's the whole point, the legislation is a response to users saying that they don't really want such companies to exist - the business practice of taking my private data and sharing it to the world 500 companies will now require my explicit opt-in freely given consent (i.e no "we'll refuse service if you don't consent"). The expectation and intent of this law is that I and pretty much every one else will simply not provide that consent, and that business practice will become impractical and die out, as it should.
I'd imagine most new social networks (if any, the last large social network I can think of Snapchat is 6 years old), will simply try and prove out their network in US first, then hire regulators to figure out GDPR, if the US pass their own GDPR.
Honestly, despite the good intentions of these laws, which I think are good, I think they will just further cement the Google/FB digital advertising duopoly. If you are starting a new social network today, I'd imagine your business model is "capture $demographic that fb poorly serves and get acquired into fb before you become viral in the EU"
“The legitimate interests of a controller, including those of a controller to which the personal data may be disclosed, or of a third party, may provide a legal basis for processing, provided that the interests or the fundamental rights and freedoms of the data subject are not overriding, taking into consideration the reasonable expectations of data subjects based on their relationship with the controller. Such legitimate interest could exist for example where there is a relevant and appropriate relationship between the data subject and the controller in situations such as where the data subject is a client or in the service of the controller."
If you don't have a facebook account for example, you don't have a relationship with them and therefore have a reasonable expectation that they would not be tracking you.
Edit: Granted, the language is somewhat ambiguous and we won't really know how this shakes out until there is established case law later in the year.
His testimony is not required for passing privacy legislation.