Because
Sleep dreams that the tendency to suddenly become rich

This is not really normal because meme coin is more dangerous in this crypto market. They always collect money from investors by showing amazing attractive offers. In reality their project does not last long in the market because most of the team members of meme coin are new generation and they have less experience. They are coming to the market only to grab the investor capital completely.
I think you already know how risky is the meme coin based on your statement,but because of dreams we still buy meme coins even if it is so risky at this point of time,but on my own opinion i think only few percent of investors become profitable on meme coins and most of them are the investors that is already reach or financially free, because meme coin also need a big capital to gain big profit,you cannot gain profit when you only invest a few amount of dollar.