^^^ this.
It's the same old argument from people who really have no idea how tracking software works or the true benefits it provides. And they completely miss probably the greatest use of tracking software: improving your own game.
Believe me, if it were practical & legal to use at a live table -- like it is online -- people would be doing it there too. Taking notes only goes so far. Besides, live play is way slower and generally way softer than online play, and you have the benefit of physical
tells that you don't have online. You can't possibly keep up with the number of players and
hands you see online if you play any significant volume. Unless you've got a photographic memory or pour over raw HHs after a match, there's no way you can develop enough useful stats and reads to be useful against more than a handful of regs you might see regularly.
And it's not about math skills. It's not like it's calculating pot
odds. And I'm not sure why you'd be using pen & paper for online play when the poker clients give you a way to take notes on players right there in the client? That sounds like old-school just for sake of being old-school, lol.