Ever since I started playing, I've been told how interesting and useful this can be, as well as not forgetting to save this file (especially in the case of
pokerstars, where I save it directly to OneDrive, GoogleDrive, or Dropbox, so I never lose it and it's always up-to-date on my PC and laptop), as I've lost it many times...
Even colors are important. Without me noticing that someone deserves attention, they get a color that
tells me I need to get information, and then I update the colors and the information.
If your information goes for a long time without being updated, among the players we meet frequently, you have to be vigilant because this is not good. It can become out of date and can hinder more than help.