While that could work. That is potentially punishing someone for just having a busy week. I personally can't post on Tuesdays and occasionally Wednesdays. Is my turn just going to be skipped if the DM happens to make a post on Monday and I can't respond until Thursday?

I admit there should be a point where too much time has passed and the group just goes ahead. But saying 'you got one day'? No, just no. That isn't giving people nearly enough time if life happens to get in the way. Which it will.