I've reached 100,000 inbox notifications. This means that 99,999 isn't the max, so I'm going for 999,999 inbox notifications. However, I found a way to get a lot of notifications fast. This way is to quickly tap on the like button on a comment. I put an auto clicker on the like button of one of my own comments and am getting around 50 notifications per second. So it should be fine.
However, Im confused on why I get notifications on actions I take towards my own account, and I hope that Webnovel can fix the spam possibilities that can result from this trick.