Well, I don't care what other users might have said as an answer to this question, but what I have to say here is that, not keeping a record as a gambler does not make you or anyone else a bad gambler, as long as you are gambling within your limit, that is, you don't over gamble to the extent that it places a financial burden on you, or puts you into financial problems that ordinarily shouldn't be.

Keeping gambling records has two sides, there is the good, the advantage side and the bad, the disadvantage side.

I personally believe that we all already know the good side of keeping gambling records, but many of us may not know the bad side of doing the same even though it's very simple.

One of the bad sides of keeping gambling record is that, it may come back to hurt you very deeply.
Imagine going through hard times and then one day, you pick up your gambling records to check how much you have spent gambling, you realize that you have spent tens of thousands of dollars gambling and have not even won half or quarter to half of that back, you begin to imagine what better things you would have done with that money other than gambling, this can break you, make you feel bad as you begin to feel like you have money to do something better but wasted it on gambling, it can affect one's self esteem.