From what I am told by my account rep at Sedo - The problem is "we are literally inundated with requests and applications". I do have one name that was accepted though (at the moment).
Prior Sedo bids and domain traffic are not the sole way to determine domain quality. Example - I have plenty of large offers on WeightlossProgram.com (didn't submit that one for premium auction & it isn't parked) but haven't received a huge number of Sedo offers. I have names that get less than 5 type-ins a day that I receive 5 figure offers on - existing traffic is "way overrated". In fact - my highest traffic names in the past actually weren't all that tremendous quality-wise (does that make sense?).
In reality, I probably get a total of 1-2 domain offers weekly via Sedo (I'm happy with that) and about 3-4 weekly e-mail offers/inquiries. I'm guessing that ratio may be true with others. When I stick up websites on my names ...... I also get less offers as people think the names are no longer available (dat sucks but producing income on sites is necessary).
I had a couple of domains listed at GreatDomains.com and pulled them. As I stated - I decided "not to list" a group of other names at GreatDomains a fair time ago because GD wasn't selling anything and I didn't want the names tied up. At the moment - Sedo is the only place I have names listed for sale. I do have a large # of sales under my belt (over 1000) so I understand actual domain values pretty good. Most of the names I sold were sold well under market value IMO which is generally the case with most domain sales.
Now visit
https://sedo.com/search/searchresult.php4?auctionevent=greatdomains&language=us and look thru the premium auction names - is anticiclones.com more of a premium name compared to wholesalegift.com, giver.org, petfuneral.com, 3-D.net, etc.. ? Yes - I do see premium names in the list along with a bunch of crap names.