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They wouldn't happen to be french cartography would they?

Well I've deployed OpenCV based pipelines in academic contexts for site surveys and photogrammetry.

Nice try, FBI.

> marginal benefit

While Youtube may be discounting direct revenue from this specific and limited set of content, Alphabet recognises the value of ostensibly being the quasi-exclusive repository & catalogue of video content.

Denying to their "users"/viewers the availability of some subset of content hurts their reputation more than "losing" a negligeable fraction of direct monetisation.

Leaving aside the morality of repudiating monetisation while allowing access, this is a sound strategy for maintaining the Youtube platform's monopoly and raison d'être. Which is after all the core of their ability to maximise shareholder value, and what else matters to a corporation?

It reminds of a (somewhat recent) article and discussion here on the design parameters for long-term nuclear waste storage facilities. One of the points was that to deter interference from pesky curious humans across the time scales considered, pictographic or lexical warnings may get degraded or lose meaning: the structure and area itself must convey a message of menace, drabness or inhospitability.

I'd have bet this was a test site for such a project. Which given the name of the installation might be the goal. If anyone remembers the paper in question, my algolia-fu is failing me.

It becomes necessary at some (low) value of concurrent write usage basically. Or if you want to lean on logic built into one of the "proper" RDBMS (GIS, granular access managment, ...).