Just because someone doesn't post their every problem or difficulty online doesn't mean they aren't having a tough time of it. Not everyone feels obligated to share their personal struggles with the internet at large. But it's pretty safe to assume that everyone is going through something, whether obvious or not. Struggles come in all varieties. Some choose to make it the world's business because they want someone else to take the reins and own the responsibilities (and they enjoy the attention that complaining brings them). While some suffer quietly, content to invoke lasting change in their lives as they own their choices.
So which would you rather be, a complainer or a changer?