we are still in early development stage and bitcoin is consider now as experimental.
Bitcoin has been operating longer than Instagram, Pinterest, Vine, and WhatsApp.
Nagle's turning bullish.
Bullish? All those companies exploded in valuation and use in less time... Ask the general public about Bitcoin? "Oh I heard about that..."
That said, Bitcoin is uncharted waters, with a nearly impossible goal, thus carrying a much steeper risk/reward profile than an emerging messaging/posting host.