That would be any information that would cause one to dehumanize trans people or delegitimize their identity in any way.

Examples:

1. Anything at all that has to do with what the Bible says

2. Transgenderism is a choice

3. Transgender people are trying to recruit or indoctrinate our youth (this is an old chestnut back when us gays were demonized)

4. Transgenderism is some kind of kink, fad or fetish.

There are many more, but I'm getting tired of fighting all the people who are too lazy to do any research, yet they hold on to their stupid, ill-informed opinions.