Irrespective of the rank on the forum, it's the person behind the accounts that determine the quality of the posts and not the ranks. Bear in mind that some high ranks account you see were just airdropped merits and didn't earn the number of merits you see their account having so don't think they got their because of their quality. Some where privilege to be around the early forum users when only activities matters to rank up and you can get their by barely writing the minimum. We also have spammers in all ranks including the higher ranks so you shouldn't be using those spamming to justify all high ranked accounts.

We also have people from different parts of the world and not native speakers of english and we all know english also has it's effects on posts that are quality. A poorly constructed reply might be considered a bad posts that lack quality but the users might had made more sense if he was a native speaker of english language or had good writing skills. All I'm saying is not all post you see that the users instead to not make sense with their write up but sometimes their english disappoints them. Ranks doesn't mandate quality but it does have its influence if the users grew the account from newbie to whatever ranks he's at now because he must have gained experience and that'll help with his writing provided the users isn't intentionally spamming to make up for the weeks quota of the signature campaign they're enrolled in.