The funniest part of this entire situation is the likely eventuality that nobody's put together yet. Follow my logic and the possible chain of events:
1- Facebook spreads word of a "storm Area 51" campaign, threatening that hundreds - possibly thousands - of civilians are going to crash the fences at one of our nation's most closely-guarded facilities.
2- This Facebook group posts a date at which they're going to effect the above action. The date is over two months in the future. Military strategists everywhere begin to wonder if they're missing something very obvious about this plan.
3- Nobody on Facebook stops to think that Area 51 is immediately adjacent to a military airport that is not only guarded and manned by the United States Air Force, but that is also capable of servicing and supplying round-the-clock airlifting operations by said Air Force, which is arguably the best transportation and logistics group in the entire world.
4- Anyone with a modicum of intelligence puts the preceding facts together and comes to the realization that the USAF not only has quite a bit of time until D-is-for-Dumbass Day, but also large quantities of jet fuel and no discernible sense of humor. Military strategist everywhere realize that no, they haven't missed anything, and relax at their desks with another cup of coffee.
5- Everyone shows up on the intended day, they crash the fences, they walk up to the Extra-Big-Ass door, and they find a "Closed for the Season; Please come back in the Spring!" sign on the door. They kick open the door to find... precisely nothing. Knowing winks and nods are exchanged behind desks, tin foil hats are crushed in anger, and there is a great wailing and gnashing of teeth throughout the land.
6- In a press conference following the gate-crashing, the Air Force calmly says "We've been telling you for years that there's nothing suspicious at that facility" and makes a very convincing case for why they need taxpayer money to improve the perimeter defenses of their facilities. The "Closed for the Season" sign is auctioned on eBay for $650,000 to an anonymous buyer.
7- Larger, taller fences are installed around the base, and after interest wanes in the following week, a large number of large planes begin landing at the air field. Mysterious crates are unloaded, tin foil hats are uncrushed, someone with a lot of stripes shakes a few political hands, and military strategists everywhere make notes reminding themselves to include the USAF's razor-sharp sense of humor in all of their future projections.