I have no idea why you need to worry about those stuffs when it's really easy to prevent it.
Negative trust: This mostly because they're scam and cheating in the same campaign.
Ban: Mostly because plagiarism, shitposter have very low chance for being banned.
This mean, if you're create a post and include all the original sources, also didn't have intention to become bad people, you're 100% fine.
As long as your intention is pure and won't do anything bad that could harm the forum and make your own account be at stake, then you are free from tagging with negative trust and banning. Although there are some light mistakes in the forum that are somehow unavoidable, like posting with low content particularly for newbies, or sometimes off-topic, but as you grow and mature in the market, these mistakes will also be corrected and you get to improve your performance in the forum and become a potential one.
Yeah if we don't do anything can cause financial loss to anyone also cannot do anything can destroy the reputation of our fellow forum member here well we can safely say that we are doing the right thing which cannot cause us getting ban or get red trust from other DT forum members here. Also we should focus to learn and to help new people here understand what they want to ask since for this for sure we can get positive tracks upon staying here.