As they said on the answers... bad faith actions like having a 127 character pronoun means that it must be reported: https://meta.stackexchange.com/questions/334900/official-faq...
"I identify as an attack helicopter" is obviously stated in bad faith, as "attack helecopter" is not a valid human gender. "God" or a base64 hash are also obviously not valid genders. The only people who would do so to begin with are trolls who want to mock trans identity.
Personally, if I know someone is sincere and wants me to use such a pronoun, I probably would, even though I'd find it odd.
So let's draw the line here: at the very least if someone wants to be called "he" or "she" that should be respected regardless of their biological sex, and agree that it gets "complicated" from there.
[0]https://nonbinary.miraheze.org/wiki/Nounself_pronouns
[1]https://anagnori.tumblr.com/post/75752291700/a-non-binary-pe...
[2]https://www.reddit.com/r/asktransgender/comments/2oj7jt/thou...
Why is that assumed bad faith? What if someone has a legitimate 127 character pronoun and that is how they identify themselves? Are you not refusing their identity? Would it not be bigoted to not refer to them as their 127 character pronoun(s)?