To confirm, this issue is still affecting users, and the issue is growing. I also receive it very often when visiting this forum as well. Sounds like the servers need an upgrade!
Tyler, please note that I have heard from multiple places that this error can also appear when the high traffic of users is too much for PHP to handle at once, thus kicking some users to the error while it processes the others. No matter how good your server is, PHP has it's own limits as well.
Think of it this way. You have a house (server) with 10 people in it. There is plenty of food and supplies (memory) for everyone, but as everyone requests the same kind of food or supply at once (opening a website, etc.), the person serving the food (PHP) can't keep up with every demand at once, so some people are forced to wait (hence the lag before the error). If people wait too long, they get angry (error). I know this is a reeaaaalllly bad way to put it, but hopefully it makes sense to the people who don't understand what PHP is lol