I recognize some of these blog posts are advanced. Some of the problems being solved are very advanced so I can't avoid all the complexity.
I would challenge everyone who uses OPA to try to understand the posts well enough to find improvements on these posts. Reply back with improvements in the comments.
If for no other reason, I submit that people who actually understand these posts have skills beyond beginner. I have 10+ years of OPA now. I am confident in my own skills. Reviewing these posts is a good way to test yourself and possibly help contribute to the community. Everyone benefits as the whole community matures.
In the meantime, I may take a break on posting for a little while until I get more feedback.