When you think of vacations, you picture yourself out on the beach, or in a hammock sipping a fruity cocktail. The truth is, hammocks are nice once you get in them... but there is no graceful, or easy way out. Thus turning the experience into the complete opposite of relaxing.
Now there's anxiety in it's place, and your foot gets caught in the net as it flips you over, and you land on your back and spend the next few weeks explaining your ginormous bruise to everyone who sees. Doesn't ring a bell? Must've just been me, then.
What these tweets (and I) are trying to saying is... hammocks suck.