After posting on psychforums in this index the police visited me early morning.
They knocked at the door and when I opened, three men identified themselves as detectives and mentioned the name of this forum and a username.
They told me that they were concerned because they said that I had written that I worked with kids. (It's worth mentioning that I'm fairly certain I never made any comment about any problem or situation, or about participating in any illegal activity -- or any other specifics about my life at all.)
They wanted me to sign a consent form and to copy my computer's hard drive to search it for child pornography.
I told them that I wasn't willing to allow any search of my property and would not answer any questions.
They insisted several times and I repeated myself.
They told me that if I didn't consent to a search they would refuse to give me a clean criminal record check if I applied for one.
I refused to submit to the search or to answer any questions and they eventually left the doorstep.
In the week preceding their visit I received a number of friendly private messages asking me to chat about pedophilia, and others asking me if I knew any links to child pornography. Some of the messages came from newly registered members, others from members with many posts. I told them all in so many words, 'not interested'.
FYI