I am only human they are times I am far to busy to read for hours to give merits and the merits end up stacking.
It's not an easy task to be a merit source because you will be more committed to the forum in reading than writing despite that you can spend your merit allocation at your will. I checked your merit history and saw that since 5 May, you have never missed a day without spending your smerit. You and few other users like @fillippone and JayJuanGee are good merit sources. 
Thank you. I am older 68 and semi retired so I have more time to read posts than many others do. But it really takes a lot of time to read them. Plus to decide when and if I should drop a merit or 2 or 3.