Why is time of service or time on job considered when recommending some for an award when it's not annotated in AR 600-8-22?

I would say it is about cumulative impact and up to the discretion of the approving authority. All things equal the longer you have been there the greater impact you will have had, since you have had more time to make accomplishments. Also in my opinion performing at a high level is our job and what highly dedicated people do regardless of awards. Therefore, doing that for a short time period doesn't merit an award or a very low level one at that. I have seen this apply not only to enlisted Soldiers, but also officers. A commander I know had her MSM downgraded as she did not complete two years of command and the CG felt her achievement did not warrant it. I don't have the reg in front of me, but I believe the MSM actually stated at one point meritorious service over a period of time, but time is relative.

SFC,

Good morning,, You know the deal good leader write their soldiers awards but our senior leaders and Officers just like NCOERs and OERs we are writing them ourselves. Look man I've been our of the Army 2008 working here at this agency and I watched a LT write his own award for 1 year at the agency, I admit he did a great but I don't he is deserving the award he wrote himself up for. Guess what? it was approved, because of the buddy system. Now I've been here for 6 years and they know I put in for a higher position across the street and I put in my IDP/IPMS that I'm looking for better opportunities on the outside in my career field because I'm going nowhere. So I wrote myself a civilian award w/o money and recommended in email to my supervisor and he called in on it. He told me that was his job and that I was not in the military any more and it is the supervisors job to do this but it was well written and if I leave he would considered it. Now you tell me, Now I don't go golfing with him or anything on the outside. I don't care what ARMY , NAVY or AIR FORCE reg. say but if your not in with the crew, your not getting award, so why bother with the reg. I will say it don't mater time on job because when I was wounded warrior working for DSS for Joint Forces the last thing I thought I was going to get when I was in the DSS conference room that day was the JFCM from the DOD, that was 1 year award. SO what is the system all about? Good luck.

never saw that...
but i used to see folks getting lesser awards because they did not already have them ... ie
get and AAM instead of ArCom because they did not have AAM...
get an ArCom instead of MSM because they did not have ArCom...
get an MSM instead of LOM and so on...