Comments / Suggestions!
You'd still have a week to actually assemble things and check in, it would just be a cut off for posting for it at the end of the month in question.
I'm not entirely opposed, but I am rather desperate to reduce the amount of work running activity check is rather than increase how long I have to work on it so making it a longer process is kind of the opposite direction. I'm not sure that posting activity is really the same as announcing it except for to new players who I tend to email out individually their first month or two.
However, if you're worried about missing the post, you can always !activity check tag on the OOC community