If I were to write something that lasted forever I would want it to be something meaningful, not something that everybody else has already repeated. So I see where you are coming from with 'Quality over Quantity'. It's daunting to try and break free from a communities norms but I implore you to keep trying! It is worth it to have your own voice spring out amongst the Blockchain, even if it might get drowned out by the noise of redundancy.
Like you said, What is posted on a blockchain will last forever, so keep posting quality content that will last forever!
Thank you for sharing your thoughts, I have been having similar thoughts about creating quality posts on Hive to keep myself separate from the sameness of many other posts.