havesome: I agree people don’t, in general, shun people who utilized a mental health proffessional. But for purposes of marrying that person other considerations are in play that are not regarding general friendships, and many many of those same people will shun such a potential shidduch, just by hearing that fact. It may or may not be right or wrong. But it is a fact.
As a result, unfortunately, many people will not go to therapy in the first place. This way they “don’t know, don’t tell” about any potential mental health issues for shidduchim. This, however sad, is a fact. So if we insist everyone must always under all circumstances tell, however minor, any mental health doctor visits, the obvious result will be many people will not seek treatment for existing mental health issues so that they have nothing to tell about.
The clear result will be that the same person will now marry someone untreated for their mental health issue UNTREATED, rather than seek treatment quietly and just not mention it (in which case s/he’ll would have gotten married with the same issue, but it at least being medically treated.) Which is the lesser of the two evils?