I get ads on the OPs post. I don't use an adblocker and wondered about this. I'm on an Android tablet at the moment. Maybe someone can elicit?
Just noticed something when using a machine w/Firefox and no ad blocking. If a post contains no or only one response, the OP remains as written. If the thread has 3 or more posts, the OP gets it's text shifted left and an a block with an advertisement (usually animated) is placed to the right in the same text box. I guess if you don't want ads placed with your OPs, you either never initiate a conversation or hope no one cares to respond.