Wikipedia editors aren't allowed to have opinions about a topic. The Neutral Point of View policy mandates that edits be deleted or re-written to present a reasonably neutral description of a topic. (And if needed, a neutral description of the sides in a controversial topic.)
Wikipedia editors aren't allowed to "know stuff" about a topic. The No Original Research policy mandates that facts and information must be Verifiable in published Reliable Sources. The sources need to exist, even if they aren't cited. Any information which is challenged, or is likely to be challenged, can be removed or tagged with {{citation needed}}.
Wikipedia editors aren't allowed to decide how "important" a topic is. This one causes the most confusion. Wikipedia's has a specific and somewhat unusual definition of Notability. Wikipedia Notability means that multiple independent Reliable Sources have published significant discussion of the subject. A musician who barely shows up at the #100 slot on a Billboard-top-100 list is Notable because The Wold has created the Billboard top-100 list to Take Note of musicians, and because a few paragraphs about the musician here and there in magazines give us Verifiable information from which to build an article. A Youtuber with more fans than the musician isn't Notable because (generally) books and magazines and the news don't publish any discussion of popular Youtubers. That means we have no independent sources from which to build an article.
So.... the reason this article was deleted rather than tagged "needs more verifiable sources" was that the number of independent usable sources was ZERO when it was nominated for deletion, and because everyone who participated in the deletion discussion did a search for more sources and came up with ZERO.
You can't built a valid Wikipedia article without verifiable sources, and you can't fix a broken article by adding sources to when the sources don't exist.
People can't write Wikipedia articles about themselves saying how awesome they are, or their company, or their pet project. (Well, they can write the article, but it will be deleted if it doesn't cite multiple independent published Reliable Sources discussing the subject).
It doesn't matter how awesome someone thinks their Python-LMDB project is. It doesn't matter how important someone thinks their Python-LMDB project is. If there's no magazines or books or news talking about it, then it's a dead-duck under Wikipedia Notability policy. We can't build an article based on just their own promotional materials, and editors can't just claim "personal knowledge" to make up stuff to write an article.
And no, this lame Slashdot story won't change that. ~~~~
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