I just saw this post on the Mathematica SE meta, referencing this one on Ask Ubuntu, with a new feature SE is trialling in SO. These are "tag warnings", which are meant to alert users about things they should be doing in the course of adding tags to their question. Here is a relevant screenshot:
This comes with a warning:
However, note that this feature is still experimental, so we don't know how well it performs, if at all (and we might eventually remove it).
However, they could still be useful, and we could volunteer to field-test it in a non-code SE site. Off the top of my head, this could be a good place for the ugly caps in the mathematics and mathematical-physics tags, which have a steady stream of people that ignore them. It could also be a good place for a gentle nudge towards our homework-and-exercises meta page.
If you think Physics.SE should experiment with this feature, please provide a tag and corresponding warning as an answer (consider including an explanation, too!). Upvote suggestions you agree with, downvote suggestions you disagree with. If, on the other hand, you think Physics should stay out of this, leave an answer to that effect instead.