I'm on Xbox and I remain offline 95% of the time because I like to solo things. And I only get an hour MAYBE two to play Sunday through Thursday. Friday and Saturday I appear online so I can join my friends and we can play together. And sometimes, I simply want to be left alone to do a specific task and I want the glory of doing it by myself. My friends understand this and have never cried about it and I don't cry if they have a full raid team and didn't get an invite. If I want to raid or do the NF, I usually send a message with a heads up to hold a spot for me and they always do.