Today I played on just-dice.com. My username is garth, so hello if you saw me! I wish I tipped more haha
Anyway I deposited 0.03 BTC to CLAMS and started to play. Using 13x martingale I got to 500 CLAMS which is around $500. After that I got greedy and went back to $0.
Just felt like sharing and saying, don't get too greedy! It'll ALWAYS come back to haunt you.

thats true, you should never risk your money too much, it is better to just quit when you are in decent profit and not even think that you might win more because you will most probably lose
It seems that he just spent the money did not expect victory

the second time I saw him make a post also with the same situation
won in the beginning and then lose many people were warned when winning immediately went to pull out but he still did this
maybe he has a lot of money so it will not stop here so let's see the next story

what you said is correct that OP was just playing for fun and he only invested that much that he can afford to lose it, but this story is very common and everyone does it same, but after getting loss they think after that .