the only way that merit distribution can go round every board is for merit sources to stop joining campaigns because meeting signature campaign quota often distract them from meriting many deserving posts
You have been told enough, I'll elaborate on same a little more.
Completing signature quota and distributing merits require doing the same thing, that is to read posts >> respond or merit; certainly you have to put your thoughts into words in former but usually it tends to be effortless as in you read and brain flourishes with a thought and you just type it out.
I'll never understand why would anybody make fuss about posting here as if people don't already pour whatever comes into their head like no tomorrow on social media sites.
Plus, I am probably reading much into your post but merit sources should only be bothering with boards they have an idea of, it makes no sense to do otherwise.