If you've ever gone through a period in your life when you considered "drinking heavily" one of your primary hobbies (a lot of people just call it "college"), you're probably no stranger to waking up to a whole lot of regret.
I've experienced this on more than a few occasions, although I think my most impressive moment came the night I went out after quitting my job and awoke to discover I'd typed out a paragraph of pure gibberish to my former boss.
When you wake up with a headache that's made even worse by your disconcerting lack of memories from the night before, there's a natural impulse to immediately grab your phone in the hope you'll be able to piece things together.
Sometimes you get lucky and discover that Drunk You managed to make it through the night without pissing anyone off.
Most times, you do not. I can't definitively say the people who wrote these looked back on them in shame, but I don't see much to be proud of.