I think the questions
are highly related, but this one is really focussing on something entirely differnt, namely if the caster is exempt from the effect or not, which is nothing the other questions are concerned about. One of the answers for mind spike kind of tangentially touches upon it, but in the list of spells it is discussing is missing detect magic, too (and that question is really focussed on mind spike). —
Groody the Hobgoblin 3 hours ago