Not a commandment, but a request: please don’t abbreviate OpenSearch.
I know - “but-my-fingers-have-to-hit-8-more-keys” - however it’s actually kind of important for the success of our project. Let me elaborate:
OpenSearch is new and one of the biggest struggles of anything new making sure folks can find us on different platforms and raise awareness about the project. More awareness = more use = more contributors = better software (in theory 
).
If everyone uses the same term, then we can all communicate effectively and find each other. Additionally, once the project gets wider adoption, this will help search engines and platforms like StackOverflow connect all the right information. So, for example, someone asking “How do I find data in logs” gets an answers like “I use OpenSearch” x100, instead of x50 for OS and x50 for o8h or whatever. Suddenly, OpenSearch is an important term.
Additionally, a newb may not know what these abbreviations mean. True story: several years ago I was so frustrated by seeing ‘k8s’ over and over. I actually knew vaguely what Kubernetes was but I just didn’t connect it with ‘k8s’. 
Finally, this is also echoed in the trademark policy. The trademark helps everyone using the project - if some shortening or abbreviation catches on that isn’t in the trademark, it’s possible that another organization could use this against our community and cause unneeded chaos.