Insightful thought, but very sorry if i say that this is not needed, i mean this thread, there are no specified rules for the local board that is not already specified in the general forum rules and regulation, so any user breaking the rules in the local board is as well breaking the rules of the forum in general, spam is spam, no matter where it is posted, be it in the local board or global board.
Well where there is no sense, but when critically look at it, there is sense there from what the Op has said there is sense in it. If you remember, after the creation of the board, the newbies now full members and Sr. Members here in the local board were posting shit and spamming the board like another thing, even after the Local Board Rules were created until recently that the related creation of threads e don reduced. And concerning the spamming matter here. Dat one, threads we don tok e don too plenty.
This I disagree with, you don't have to type the page page of a book before you be considers as a quality poster, for all care, there are some one line replies that are so accurate and at the same time, so straight to the point.
And do i need to tell you that many who type long walls of texts are mostly doing so to make sure their post or comment meet the requirement of what ever company they are promoting through signature ad campaign.
Experience na di good teacher na so dem tok am. I don see plenty people threads, comments wey dem don delete because of short short comments wey dem do and me sef dem don delete my own so weti di op dey to e no far from di truth. Yes and I also agree with you say one line sentence wey tok di main thing sef dey get reward but but weti op dey try to tok be say make dey increase our writing. Dat one line wey u say e dey quality na from Sr. Member and not for newbies.