I don’t know, there were days when I posted 6-7 chapter when it was time to end a volume. I spaced it out, 1 chapter per hour. I didn’t notice anything being flagged or obscured from others.
It just stops showing up on latest updated. It's to prevent spam, but you won't get 'flagged'. Just space the release out by a few hours* at a time. *Or days.
How much did you stockpile?