BBBJ and the internet

I've been reading all these articles on the internet about the dangers of bbbj for both the reciever and the one giving. The articles all talk about the liklihood of picking up a std like chlamydia, and with an added warning about it being a symptom free condition 50% of the time. Other places say not to worry.

What say you? I'm curious about what you think or have experienced.