That is true. Facebook is already a giant in social media platform and it has developed a lot innovated and great technologies as well. I heard they are building a lot of great things also. It is normal for stock to go up and down. I believe it will come back soon later.
bitcointalk.org has 2,300,000 members. Not bad. My threads/topics here have got 300 to 800 replies.
One of my topic here got 800 replies in 7 days but many of my topics have been deleted.