Not all the useful posts were not getting merits,for some reasons.
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Most of the posts that earned merits for
DdmrDdmr were from Meta and serious discussion sections,but I rarely post on those sections.

So this means other section don't have posts that are much worthy to read by others? I agree that there were lot of spammers who have no knowledge about cryptos but still posting for earning money from bounties but we need to have find the quality posts in the bitcoin section as well,since the main reason of the forum is to discussing about bitcoin.
The whole Bitcoin forum section adds up to 9,18% of all awarded Merit (Bitcoin Discussion 4,94%, Bitcoin Technical Support 0,56%, Development & Technical Discussion 2,44%, Mining 0,97%, Project Development 0,27%). Not a lot on a Bitcoin forum, but Merit is not specifically aimed at Bitcoin, but rather any useful/interesting/controversial/you name it kind of post.
Meta is one of the interesting sections, since it has reduced spam and some bright people around, focusing on ideas related to the forum itself. The forum is the infrastructure for talking about bitcoin and other areas, therefore Meta should be a rather merited section. Bitcoin seems under-merited subjectively, but there are many spam megathreads there that dont help too much, and the really technical posts are understood only by a reduced set of eyes.
Megathreads need to be locked to stop the spams from signature spammers,that is why more people started to hate bitcoin discussion section.I am also not good in understanding about technical aspects of bitcoin but it is not necessary to use our bitcoin.
By the way you have very good contribution to the forum with your good quality posts,keep doing that mate.