<...>
The way I see it, I think your EMEP proposal would be a better measure than EMEA, since it covers all post and not just a pondered fortnight count on them. In either case, as you say, only post posted since merit system kick-off should be considered for this indicator, avoiding the effect theymos mentions when pondering all the post history.
Another possible personal indicator would be something in the line of MPEP:
100 * (Nº of distinct Merited Posts / Nº of Posts)
The MPEP indicator should again only consider post merit kick-off posts.
The two are in fact complementary. I could have made 1 good post out of 50 and receive 50 sMerits for it, or I could have posted 50 posts and received 1 sMerit for each post. In either case, My Merit Counter would have been incremented by 50.
In the first case I would have EMEP: 50/50 =1 and MPEP: 100 * (1/50) =2%
In the second case I would have EMEP: 50/50 =1 and MPEP: 100 *50/50 =100%
EMEP stated that both cases have the same ratio, but MPEP gives as insights as to how the earned merits are spread out over all posts belonging to the user. The latter is a better poster overall in theory.
Something similar ratios could be though out from the awarding point of view (how much do I award?, Do I award evenly or not (by looking at the standard deviation for example vs mean).
The thing is, figuring out what to do with these indicators and what operational use they have. For example, should they be placed on the user profile and could be a way to create self-challenge for improvement of the values of the indicators?
They could also be placed on the user information area by the posts, so everyone could see them, but could be too easily taken as indicators for awarding/ingoring the user’s posts (this could be both good and bad, depending where our indicator values lie).
Or they could conform a general stat to the forum.
I’m not sure if the OPs intention in this post is limited to personal indicators, or global stats too. Some simple global indicators in addition to the currently shown could be in the line of:
These indicators help monitor sMerit overall flow and are both beneficial and potentially controversial. The interesting new columns that I haven’t seen around before are nFromNew (number of new users that award sMerit and have not done it on previous weeks) and nToNew (number of users that receive sMerit for the first time). Positive news here is that roughly 30++% of awarded users are "new", that is, they receive their first sMerit, so it is not all going to consolidated users. Quantity is small though.
Note: Week is natural monday to sunday (the last week (16th) is therefore partial since sMerit.txt file goes up to early friday morning.