Hi interesting thread here.
I trade with most of the sites you mentionned (except reachporn, BTW reachporn, Im interested by a trade with you lol)
I also checked and got visits between 1 and 3 seconds max from all of them
BUT
I also see some page visits, so Im a bit confused. If they are bots, would they be able to do that, or is there a small small percentage of their traffic that is real ?
Thinking about removing them from home page and maybe keep one or two of the list at max. Not interested in fake traffic :-(