That's not the problem. Strings saying "null" are not the problem. That's just four lower-case characters. No system chokes on that directly. The problem is do

That's not the problem. Strings saying "null" are not the problem. That's just four lower-case characters. No system chokes on that directly. The problem is downstream, where some galactic idiot has special-cased the string "null" to turn back into an actual `null`.