for example when he bought 5 btc the price of btc from that time is may we say that $240 per 1 btc and when he spend it the price of his coins was higher than he bought it, so its mean or he could say that he won from that way.
No it is not this case. Basically you are seeing this from the price perspective that is why you and most people are getting the wrong thoughts on it. It is not about the price but merely about what price are you gonna buy it at
i.e I bought at $240 and sell at $242. Im thinking that I am a winner while the buyer is a loser ( this is from the traders perspective, my point of view as well) however Deisik and Borisz pointed out that this isnt always the case because someone that bought at $242 do need the
BTC for other stuff which means that in his own point of view he is a winner as well because he got the
BTC at the price that he desired for
It doesnt actually matter on how he will spend it because what matter the most is on what price is he buying it at and someone who bought
BTC at his desired price is a winner as well.
P.S : hope this clears out , basically this whole things is caused by my silly quote that is only viewing it from a trader's point of view