Valid post. Even within charts, there is highly idiotic data-slicing/dicing to somehow get a high.
Take for example 'fastest', an utterly useless parameter - if BTS or IU accidentally release a recording of them coughing or gargling, it might still end up climbing the chart fastest or something. This is not some track and field athletic event.. to bother about being the fastest hah..
Even PAKs based on hourly/daily/weekly aren't that reliable indicator, at least not by hitting it once, which could be purely circumstantial,
ULs are a far better indicator and longevity - both are far better correlations to actual sales. Charts do provide that information, not during the mad-rush around release, but eventually.
At least the artists seem to be well aware of what matters and the mature ones do say that they are far prefer longevity.
Weeks at top #100, for how long since the release date, that top 100 ranking is maintained is perhaps the best quantitative indicator.
With most fields, the flash in the pan onetime top ranking and then never heard of - people and products are all too common.
Still charts play the game to feed the emotional frenzy of shallow fandom.
I have stopped checking any release which is not at least a month old.