You see, as much as being wary of legal documents is a good thing, in my native language, we have this funny distinction. Letter of law, and spirit of law. The first part, is what's written in the documents that decide HOW the law is enforced. You can often find crazy sht out there, but against all common sense - it's still there.
And then there is something called spirit of the law - basically, what does this law means in reality. How it will be realistically enforced! You can have the harshes law that condemns you to the death for possessing a lollipop, but if no cop takes it seriously, you are free to eat the candy as often as you want, just keep in mind to not burn some cities or the gov would FORCE the law enforcement to act seriously.
It's that simple. Just like @Dan_Ryder mentioned, Qidian puts a gun to author's heads, but it will never fire. Why?
1st: - enforcing the clauses of the contract would have to go through international court, as all international contracts have to go through a medium
2nd - actually using those questionable clauses would mean burning their own goose laying golden eggs. People are willing to work for them and write for them only as long as they feel comfortable with them.
3rd - There are many many topics out there, from the bugs, through the different features all the way to the constant growth of the site and how to cope with it, that takes the time of all WN staff. If you really think they can give an F about any particular author leaving, writing something that might be unnice to China or anything like that,... They would either shadow-ban or remove him. First meaning that said author is banned from any form of promotion, second one happening when one breached the contract by posting stolen or CP content as his paid work.
Overall, I'm not telling you to not be wary about such stuff. I remember how crazy I was over it back when I signed my first chapter. But now that I have a first-hand experience on how it works, I can sum it up all with just one sentence.
WHO THE FUQ DO YOU THINK YOU ARE, TO ASSUME THAT YOU ARE WORTH FOR WN TO RISK THEIR ENTIRE BUISNESS ONLY TO BULLY YOU SOME?