Take a wild guess about how much memory and how many disk spindles it takes to get a TPC benchmark on a modern server to be CPU limited. Take a guess as to how many weeks of engineering time it takes to perform and validate the benchmark after getting a pile of hardware delivered to your lab. The average blogger writing 3 posts a week ain't gonna do it.
It also prevents meaningful benchmarks to be published.
Do you really thing any agreement that involves silence is censorship NDAs included?
Sure, it's easy to simply say: sucks to be you! Especially to "community bullies" like Oracle. Even just between semi-competing open source projects benchmarks can be so bad they border on libelous.
Oracle are just an awful company in every dimension. This, is just like most everything else they do in that it reinforces the reputation they earned for themselves.
On the other hand, we can't predict what solutions society comes up with for dealing with incompetent benchmarks. For example, you say professional bloggers would do lousy jobs, but this is exaclty the kind of things that neckbeard hobbyist bloggers would take upon themselves and do excellent jobs at.
That or other solutions could emerge, but the whole point of censorship is to prevent that.
If these apparently incompetent people running the benchmarks are also the incompetent people creating the schema's and queries out in the wild then the benchmarks are still worthwhile.
I want to know what performance I can expect, not what I can expect when the environment is highly tuned by rare experts that will never touch any of the systems I have to deal with.
https://www.reddit.com/r/programming/comments/2mhpwp/postgre...
Never underestimate how keen people can become about something they have paid £1,000s for. How on earth could a DBMS like MySQL/MariaDB or PostgreSQL possibly compare to the mighty Oracle money generator or MSSQL ... errrr ... money generator.
Just in case you wonder whether open source DBMSs should be taken seriously, try reading this: https://postgresweekly.com/ and this: https://mariadb.com/resources/blog