I am referring to questions like THIS
Expressions like "3 = 6" are an abuse of notation and, as such, make doing mathematics correctly harder instead of easier.
Mathematics is peppered with mathematicians abusing notation, often justifying their actions by saying that "the context" should make what they mean clear. Usually it does. Puzzles like the one I referenced above abuse notation with no preamble.
I guess what I'm asking is, could I edit the question by appending a comment that the question might make more sense if, instead of
2 = 6
3 = 12
4 = 20
They thought of it as
2 becomes 6
3 becomes 12
4 becomes 20
or some such thing.