I am going to give my opinion on a few of these points. I would like to hear Sedo's opinion as well.
It would be nice if Sedo would seperate bot traffic from regular traffic. Then again, they pay out pop-unders on high bot traffic domains, which is nice. I imagine that displaying bot traffic seperately would require an overhaul of their whole system. I personally do kind of like knowing how much bot traffic a site has. Also, some parking companies do not show RSS traffic. It is as if it does not exist. I am glad that Sedo shows that. I mentioned before the main benefit and downside I see to them showing us this extra traffic. Benefit to them is that domains for sale show more visitors, downside is we all have lower CTR and RPM. A side benefit to us, is that they pay for pop-unders on this traffic.
On the issue of knowing if the traffic is legitamite. I think that on any marketplace, you can not know with 100% certainty if the traffic is legitimate. I wish that as a seller we could send screenshots to prospective bidders, but without their email that is not possible. We can still ask the seller and Sedo themselves to provide us with any information we want, including, Clicks, CTR, RPM, and Earnings, and we can make them go back a few months. Now I have not tested this, but I believe if we ask a Sedo employee for stats and they give us wrong stats, or stats that are fraudulent and don't tell us, then we have the ability to return the domain and get our money back. That is one of the main reasons to ask a Sedo employee to confirm traffic quality. If the domain has 1000 daily visitors, and then you buy it and it drops to 5, that is unacceptable. But like on most domain marketplaces, you do have to ask and do your own research. Their traffic number are normally closer than TDNam, and it is better than having to guess based on Alexa rankings or things like that.
I think that more transparency is good in every marketplace
