Swamp (numa)
Overview
Numa ("swamp") is slang for being so deep into a particular hobby, piece of content, or activity that you can't get out. People use it in phrases like numa ni hamaru, numa-ochi, and "the X swamp." There's the idol swamp, the gaming swamp, the oshi swamp (oshi: the favorite you passionately support), the makeup swamp, and more. What people get hooked on differs from person to person.
The image of a swamp is that once you step in, it has no bottom, and the more you struggle, the deeper you sink. It sounds negative, but it's also used in a positive sense. "I fell into the swamp" means almost the same as "I've come to love it so much," with a nuance of enjoying your own obsession.
The question box swamp
Question boxes have a swamp too. You started out casually. But getting questions makes you happy, thinking up answers is fun, and chatting with your followers feels good. Before you know it, you're checking your question box every day. That's the question box swamp.
One entrance to the question box swamp is "the moment your first question arrives." It feels good when someone takes an interest in you. Wanting to feel that again, you open your question box over and over. Getting reactions to your answers can also pull you in deeper.
A healthy relationship with the swamp
Getting hooked isn't bad in itself. Being able to throw yourself into something is a happy thing. The problem starts when the swamp begins eating into your life. You can't focus in class because you keep thinking about checking your question box, your phone keeps pulling at you while you're talking with friends, or you open your question box before bed and stay up late.
You don't need to climb completely out of the swamp, but you do need to stay aware of how deep you're in. "Open my question box no more than twice a day." "Put my phone down an hour before bed." Rules like these are the float ring that lets you enjoy the swamp without drowning. A swamp is something to enjoy, not something to drown in.