The answer is: Yes, I am. Always. No need to ask.
I've only got one account and I'm logged in there all the time. If I weren't logged in anymore I wouldn't know that anyway but it's never happened. This question from the Later app is completely useless to me and just an obstacle in the process.
I understand that there are people who want this question. So I suggest it may be optional. I don't care about the default setting as long as I can change it.