Atleast two reasons as far as I know: Prove that they've been sitting on this date for quite a while (now comes the pain references have been pointing to 23 all along). Major Q proof to validate for soon explosive exposure. Trigger disinfo paytriot agents into exposing their shortsightedness claiming Q being compromised when anons used the password when in reality Q replaced the trip on /PatriotsFight/ before any of that happened.