>I’m planning to create a website inspired by Japanese imageboards like Futaba Channel.
a lot of sites exist like this already, and most of them are deserted. heyuri's community is a rare exception, and it only exists because of the hard work of users and staff trying to keep it alive.
before you spend all that time making the site, you ought to ask yourself, "what will make my community thrive where a hundred others have died of inactivity?"
that will save you some frustration later on.