(This forum seems more secure with our informations but however if you commit a big crime that is way beyond the forum internal control the admins wouldn't mind giving your informations to the right authorities)
A criminal is a criminal wether the person is a reputable member of the forum or not and good thing is that the forum stands really strong against anything that looks like a crime so there's no need trying to hide under the cover of the forum to carry out a questionable act.
If the context of the thread is to Advice criminal minded members of the forum to be mindful of what they share on the forum so they won't be fished out if they are caught committing any crime, then I don't know how useful this information is to member of the forum expecially members of the local board. Securing and ensuring that our information isn't leaked should be so that others don't use It against us. It's never a defense mechanism that we should adopt just because we are fraudulent.