I had to install MS Authenticator to get into my account, then I added a phone number. I then deleted Authenticator from my phone and from my 2FA settings.

for no reason

for to drive

https://bitwarden.com/password-strength/

Test it here. Passphrases of 3 words take centuries to crack, without any numbers or capital letters. Passwords with numbers, capital letters, and symbols need ~14 characters to be that secure. If you need to memorize it, a passphrase is far superior. Add in a number, or random capitalization, or a misspelling and your security goes even higher.

Because they’ve given you everything you’ve ever wanted, been nothing but genuinely kind to you, and done nothing you’ve ever disagreed with.

These other answers are dumb, but for it to be the dumbest it has to be dumber than “they did something I don’t think is wrong” and instead is “they did something that everyone agrees is right.”

Nope, because now you’ve started to provide more information than is necessary to identify yourself.

My interpretations of the Florida law for your examples, but of course I’m not a lawyer, this isn’t legal advice, and my interpretation of the law is different than what I believe is ethical:

I introduced myself as Mx Endocrinous,

This is fine. You’re just giving students knowledge to identify yourself.

wore nonbinary and trans and gay flag pins,

I think this is probably on the borderline, but I don’t believe the law would allow this. You’re conveying information beyond what the students need to know to identify you.

On the other hand, I think the law also prevents someone from wearing anti-trans and anti-gay flag pins (if those exist? I’m not up-to-date on hate symbols).

had an it/its pronoun pin,

Legal IMO. At it’s core, it’s just two English words on a pin which have meaning far outside the sphere of gender identity. If you’re using it to indicate how students should refer to you, it’s also legal IMO.

and referred to myself as dronegender,

Not legal IMO. It’s outside of the basic information necessary to have a conversation with or about you.

I don’t personally this is a particularly good law, but I also don’t believe it is as restrictive as you’ve described it. And I’m not a lawyer. The law is written about “classroom instruction,” so as long as what you’re doing doesn’t constitute that, you’re fine. The difficulty, as you’ve pointed out, is defining what that means.

This isn’t necessarily true. LEDs are capable of running for years, but not all LEDs are designed this way or are operated this way. An LED in a given application can die quicker if:

• the LED manufacturer cheaps out
• the phone manufacturer runs the LED at higher current for more brightness
• the phone is poorly designed, allowing the LED to heat up
• the phone is exposed to significant heat and/or the LED is covered while used for a long enough duration

Introducing yourself as a Mr means informing students you identify as a man.

No it doesn’t. What if I’m a woman who prefers Mr as my title.

Also the words man and woman are banned according to law.

No they aren’t. These words tell you the gender identity of someone, but they don’t explain what gender identity is.

Classroom instruction by school personnel or third parties on sexual orientation or gender identity may not occur in kindergarten through grade 3 or in a manner that is not age appropriate or developmentally appropriate for students in accordance with state standards.

Using words like “Mr,” “Mrs,” “man,” “she,” etc. does not constitute “classroom instruction … on … gender identity.”

If a teacher puts their lunchbag under their desk, they aren’t necessarily giving instruction on object permanence. Just because a psychological concept is associated with an act or phrase does not mean that the mere presence of this act or phrase in a classroom constitutes “instruction” on that act or phrase.