So everything I have seen said by actual admissions officers at highly selective “holistic review” colleges is that they are definitely not looking for people to “embellish” their activities in the sense of trying to make them look more formal and impressive than they really were. And indeed, to be blunt they generally do not see most activities as competitive qualifications, because they know there are many different activities where various awards are available to reasonably smart kids willing to put in enough effort. And they already know you are smart and capable of effort from your transcript (and test scores if available).
So mostly they are looking to activities to get a sense of the person’s passions, leadership skills, team skills, and so on. And a few activities might indicate special non-academic talents not already demonstrated on a transcript (in athletics, the arts, or so on). But even if not, it is still valuable to them if an activity “only” demonstrates how that applicant would be a good fit for, and valued member of, their college community in ways a transcript or test score cannot address.
But I agree it would be wrong to conclude from that they want modesty instead. This is a self-advocacy exercise, and self-advocacy is an important college and indeed life skill.
So I think applicants really need to think outside of a one-dimensional spectrum that goes from “embellished” to “modest”. Instead, they need to think creatively about how they have demonstrated valuable personal traits in their activities, and not be shy about painting that picture for AOs.
As a final thought, I think there is a latent issue here where not enough kids are getting good advice on these issues long before they are actually filling out applications. Like, if eventually you need your applications to present an honest and compelling picture of you as a person that has been highly valued in many group contexts, including classes, organized activities, informal group activities, and so on, you actually have to BE such a person. Otherwise, you are in the awkward position of trying to figure out how to fool admissions officers into thinking you are someone you are not, and a big part of their jobs is basically to see through such efforts.
And yet so much of the “how to get into good colleges” advice kids get is individualistic, and specifically about competitive achievements. Here is how YOU can get a more impressive transcript. How YOU can get better test scores. How YOU can impress colleges with various awards offered in various activities, or positions/accomplishments that sound impressive to other HS students and parents. And so on.
And then suddenly they find out that whether or not they are a good person and valued member of their school community matters a lot to the most selective holistic review colleges. And they feel like they have done everything right, and yet in truth they have done little or nothing to be such a person. And so they belatedly try to figure out how to make themselves seem like such a person in their essays and such, even though that has never really been a big part of who they were.
And then they are frustrated it often doesn’t work, because admissions officers can often tell they are not in fact really the sort of person they are looking to admit.
So unfortunately, there is only so much helpful advice can be given to, say, a rising senior who has really been devoting themselves to individual accomplishments and not to being a good person and valued member of their community.
But if, say, a rising senior has actually done at least some stuff that reflects well on them as a person, we can maybe help them understand that using that as much as they reasonably can in their applications is not a bad thing. And specifically not something they should be concerned about looking bad compared to an applicant who seems to have a long list of impressive individual accomplishments.