if colleges don’t seem to be viewing the student’s YouTube videos submitted on slideroom does that mean the school is not interested?
Not necessarily. If these submissions are optional, the college folks may not have time for them. When I worked at Smith College (many moons ago and in a far less high-tech era), we had to stack art portfolios, slides, music CD’s and similar unsolicited submissions in a bathroom (!) because there was no room for them anywhere else. There would be a note on the application that said, euphemistically, “Slides on shelf” (it didn’t say WHERE the shelf was!) Typically, if an applicant was very strong academically—or very weak— we wouldn’t even glance at the slides et al. A verdict could be reached without them. But when the applicant was borderline, we might go as far as sending them to an appropriate academic department to evaluate.
If these materials are REQUIRED at the student’s target colleges, the fact that they haven’t yet been viewed may just mean that the admission folks are swamped and haven’t gotten to them yet. Mid-February is still early in the evaluation process at many schools.