Well, that story (if it's true) is a roller coaster kind of experience.
He regretted investing in altcoins at first, then he wants to invest in it again.

As for me, I can't say it is that hard lesson because I believe experienced way harder than what I experienced, but I guess the hard lesson that I learned is "Don't invest, and hold meme coins for a long time." I didn't get scammed with a huge amount of money in my long time being involved in cryptocurrency, and luckily I didn't get hacked either. It's the meme coins that got me when I tried to invest in some meme coins out there. I didn't expect too much on it because, after all, it's a meme coin, but what I didn't expect is how fast that coin went down since I bought some of it. To cut the story short, I lost almost all of my capital on it (I think I lost around 90%).

Well like I always said, we need to learn from every mistake that we are making especially when it comes to investing. Currently, I don't invest in meme coins because I don't want it, but because we are nearing the bull season, I might invest a few bucks just to ride the hype of it.