You're always welcome to send a PM to iHAdmin and that doesn't go against your daily count.
I can pass along your suggestion but my guess is they'll say "You can post as much as you want during Happy Hour so use your posts prior to that. Or buy a sub." :)
There is nothing to fix. Think of a Happy Hour as a "bonus". If you've posted 25 times by the end of Happy Hour, you got a "bonus" of ten extra posts that day.