Am I genius?

That would only work if they lost 50% of their members. The stock price doesn't go down every time someone closes their account. A better idea would be to find a serious flaw in the design, or find that they sell people's data to companies or something like that. Then the price would dip.

Everyone delete your accounts now lets do this !!!

How about the hundred millions of accounts that are dead, inaccessible, forgotten, bots, multiples, etc?

Ah yes, insider trading. Nothing wrong with that.

Do it! Do this now! Genius!

Brilliant!