> From what I gather they used Article 43 from the court proceedings, that's the debatable part but they can act under that, no?

Kind of. The article 43 from the court proceedings, is clear when it says that it limits the power of investigation to the court's premises. The internet does not seem to me to be a court's premises.

> And that's libel.

I'm not sure. And it's hard to analise it since the evidence has either been destroyed or is under seal.

> pretty stupid from Moraes part

one more thing about Moraes that looks like power abuse: https://www.estadao.com.br/politica/blog-do-fausto-macedo/de...