I have some stocks but don't really needs with them on a daily basis. Do dabble in some forex but nothing too heavy. Wanna get more into the futures game, especially bitcoin and ethereum futures.
Far as your question about buying and sitting on it, yeah it depends on the coin. Shib does have it's own ecosystem and products but they been slacking on releasing their shibarium app. But in the beginning it ran up due to word of mouth/supply and demand. Not all of these shytcoins have products or use but some could run due to momentum and the community. Like the one I have currently is called pepe. Which doesn't have any usage but the community has been growing and what people seem to like is the meme it's based on, which is some green frog. Doesn't do anything but it has over 120k holders. Thing with these type of coins is getting in early. I got in within the first 12 hours. But not all survive. Not everyone survives this game. I've lost plenty on random coins but my winners like pepe, make up for my losers. So I can lose $100 on 20 coins, but the money I've made on pepe makes up for it. Getting something stable instead would've kept me in the same spot. What I do now is take out profits on my pepe gains twice a week into bitcoin, ethereum, and cash, that way I get things a bit more stable while leaving some in there for the next time pepe goes up. Managing my investment and risk tolerance. Just like stocks. Some are stable or safer like spy, and others are more risky. Just depends on how the bankroll is managed.