Every handful of days is tons. I would actually be worried about the CV trying to find work to feature if emote DDs were every day. I don't know exactly how many suggestions Krissi gets on a regular basis, but she probably only gets half as many as she needs at the moment. On a daily basis, she would be strung out, I would think.
If people are complaining that there are not enough DDs, or they are all given to the same people, suggest some to the CV. That's well within your power and rights.