Sorry for our 'crap' attitude.

And, bad vibes too...
As photographers, you're probably very busy shooting, editting and uploading so I won't waste anyones time.
I can only speak for Crestock's inspections since May. In that time we've approved at about 61%.
We write custom comments to contributors we feel are especially good, or give tips to contributors we feel could do some things better. We take time to respond to all complaints, despite a heavy amount of uploads that need to be inspected.
Crestock is a stock photo agency. Despite the anonymous nature of microstock, using the internet as a medium, we're more interested in cooperating as closely as possible with photographers and certainly don't wish to give anyone bad vibes.
I'm here because we've had a couple of great dealings with a few of the major microstock photographers going around over the past few months. They've contacted us and we've worked out ways of taking in large amounts of their collections. This has been good for everyone, with our collection really growing fast and their sales doing the same. We'd be interested in helping out any photographers that want to upload a lot of pictures, making sure that they don't waste time getting surprising rejections and giving them better exposure once they're up.
Contact me directly if I can help.