I was just coming here to say this. Seriously, I have passed so many players who have not moved in FIVE HOURS. Servers are full and I can't log in to my main (the old 1017 demon) and had to create characters on another server just to play. I can't even CREATE characters on the server I intend to play on with my friends and haven't been able to since early access because people will not log out... and there are numerous threads on other gaming forums where people are bragging about staying logged in for days at a time, while at work, sleeping, you name it and encouraging others to do likewise--which is preventing players who are at the keyboard, legitimately playing the game from, you know, actually even getting logged in to play the game!
Come on, SE, this is common sense, and an hour is three times longer than the most generous inactivity timer. This is bloody ridiculous.