when such gaints can run into a problem, what makes you think they can't be shut down ?
LONG LIVE BTC, 100% UPTIME

Social networking platforms developed over the years such as Facebook and Twitter can always live forever. It can change owner, but I believe it will live in tandem with Bitcoin.
These social networking platforms have made a big change on the world connecting the people. Now bitcoin through its technology backing will make a big change in the entire global transaction process. At present the community is in need of social networking, same will happen with the cryptocurrency as well.