ta123456789

This already happening in many places. And does not seem to be he intended application in the OP

Look up the incredible profit margins of publishers such as Elsevier or Springer.

University researchers/teachers who publish books or articles through them often get paid nothing (zero), or very little. And they do not care, since their goal is get publications in prestigious venues, which helps them in their academic career.

My point is that this stuff should be free, open access, published at low cost through university presses etc. So pirating academic books is basically fine.

At least for science books, authors get paid very little or nothing. And no researcher/teacher relies on that for their income.

I suppose most people using LaTeX come from a scientific background. If you write math papers (for example) there is no good alternative to LaTeX. It has many issues but mostly it just works, so people are content with it.

If you want to write a novel something like Word is probably better. Or just use a typewriter if that's what you like.

I thought the question is not why this is a problem, but rather why is it possible at all for a loose object to end up in the depths of the AC to cause problems. Is there some reason we cannot avoid this?

From a laymans perspective I think of a car, where dropping something small while driving is unlikely to cause problems in the machinery.