The ads are "auto" delivered and placed by google, its a new feature that I enabled couple of days ago. I am sure it can use some tweaking.To admit, so far it is a volunteer system ... from time to time the Webmaster starts a donation campaign and usually - at least to my knowledge - it works fine.
If You like I can ask him.
Otherwise it was not a critics again You and even if annoying I can fully understand this decision ... maybe there are options where to place the advertisements? Right in the middle of a thread - or even a post - is indeed not good.