The fines aren't for 'Prompt Injection' directly, but rather for attempting to undermine the court integrity. It's, for example, the same as attempting to bribe a court official.
But Brasil court doesn't work under precedents. So unless this becomes law, it doesn't change anything for future cases.
> But Brasil court doesn't work under precedents. So unless this becomes law, it doesn't change anything for future cases.
German courts official doesn't work under precedent either. But in practice it often behaves like it does. Eg very prominently discussed in the media for judgements around renting of residential property.
In the other direction, in a common law system it's up to the judge to decide what precedent, if any, applies. You can always find some peculiarity of the case that justifies deviation, or you can ignore some peculiarity to justify following a precedent you do like.