They are not public, I know, but were those sMerits a trivial function of member rank/activity?
There's this:
The exact formula was:
yearActivity = activity in the last ~year, max 378
freeMerit = the merit (not sMerit) you started with
modifier =
0.1 if member
0.2 if full member
0.25 if sr member
0.35 if hero
0.4 if legendary
return (yearActivity/378) * modifier * freeMerit
So the most you could get is if you were a Legendary who maxed out your activity points in the last year, in which case you would get 1 * 0.4 * 1000 = 400 sMerit.
Note that I later made an adjustment giving 500 extra merit to some hero members, but no extra sMerit was given here.
I'll probably publish a dump of the initial sMerit at some point.
But: based on this, I should have received 400 sMerit. I only got 200.
If I remember correctly: in total, 600k sMerit was airdropped. That's slightly more than has been transfered since the introduction of Merit.