Your first post, and you've been here a while?
In my personal experience as an actual user, I'm not having problems. My monitor.us report has been showing 100% for the last several weeks, and nothing lower than 95% for several months. In other words, I've not experienced any outages.
As you can see on the status page, there are many instances of users violating ToS, which often leads to server outages. It only takes one problem user do bring a server to its knees. Private Servers are much more reliable, but you've not specified a problem, other than often having trouble. Many times, it's improper PS settings chosen by the user.