doesn't help anyone and keeps those needlessly busy who aim for high information quality on this site

Lanx that is a perfect description of the majority of your voluminous bloviating on this site, be it:

• half-baked Emacs thought experiments
• three-line debugger "demonstrations"
• fragments of computer theory thrown out with "I don't have time to test now" disclaimers
• riffs on world history or whatever other off-topic topic arises at the nether regions of threads
• ...

Besides, who made you the arbiter of how serious a tone a poster must use in a discussion on this discussion site? You of all people, whose 'jokes' posted outnumber working programs posted by orders of magnitude?

Hope this helps!

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