@TIPS I have a _feeling_ that @rg255 is onto something with the tag providing a bit of a get out of jail free card regarding effort. I think that's a different problem to the physics, chem, math homework problems which are generally about sheer volume of low effort questions. Here the problem is that we're finding it hard to get a clear cut way to identify a low energy-input, endlessly-answerable questions, that would be quickly google-able by a reasonable person.

I get the impression the tag is often useful for filtering and finding questions to be closed on other SE sites with the hwk ta…