Lots of us have jobs where we have to work during the day and can't MN.
Then we get home and log on to find lots of in jokes and comments about stuff that has happened in our absence. Then, because of the TAAT rules we can't really ask what we have missed.
I think that at about 6pm every night there should be a round up of all the things that happened over the day. Perhaps there could be one at about midnight too.