they didn't "validate" anything, they just opened the csv. also i'd be interested in their take on the second column, that looks like clubhouse's scoring system (which they ran without telling anyone, likely for marketing purposes, according to this* article). if so, you can in fact tell which numbers are more significant than others.
Hmm, so the "highest" numbers would be publicly-knowable numbers anyway (because they are the numbers to dial and contact the government/customer service of a private company).
If this is only a list of numbers and their relative popularity, the best you can do is accusation of adultery (and even in that, you could say that you're "popular" because coworkers also store your numbers).
*https://futurezone.at/apps/clubhouse-leakt-38-milliarden-tel...