I know that I already spent a decent amount in my gambling activity from then until now and the idea of keeping records of my losses can't help me to move on. So what's the point? Some gamblers might think that they need to keep playing to recover those losses (if they record it) and it doesn't feel good to have such feeling of guilt or eager to chase it back. Therefore I better record my remarkable winnings rather than the losses because good memories are worth remembering.
That guilt is for real.
When you see the entire amount of how much you've spent in gambling makes you wanna go for more and recover them.
And if it's not working for you and you just feel all of those losses is giving you a heartbreak, much better to just release it and don't keep records.
But if someone has a good reason for keeping it or it satisfies them, that's a good reason for them to keep the records.
While if it's not helping you, leave it.