Another DdmrDdmr's merit wave distribution, I'm surprised if he merited my old posts and I got another 5 merit from him 
I remember back months ago where I will get merited by DdmrDdmr in a particular post like 1 or 2 merits and later on he will add to the merits again. These days I hardly encounter DdmrDdmr post or feel his merit on my profile. Could it be that he changed or I am the person that changed?It could be that he pays more attention to full members - newbies more than Snr member and above rank.
You could use @ddmrddmr dashboard to analyse if he changed his merit habits to different ranks over time. There is a tab for that.
So that you can check that hypothesis of yours.
This is the beauty of that tool: it’s more powerful than many realise.