Low marketcap coins are too risky and sometimes low cap coins doesn't follow the market and remain stable for whole bull season. Other big risk is delisting of major exchange such as Binance and big dumps possible. I tooks some risks by buying SNM and orher low cap coins , unfortunately Binance delisted three low cap coins without notification and my portfolio down 5x in just matter of half hours. My friend made 15x in same SNM when it pumps from 0.3 to 12$.
I have done so much research on these low cap coins and my experience says that low cap coins are profitable only in bear market. Many whales have extra usdt and btc and they pushing low cap coins one by one. wing, bond, snm, oax are some coins which rised more than 10x in very short time but again dump to original value in 48 hours.
Well, 99% of alts behave like you explained. They remain stable for the whole bull season, after the bull season they even lose their value... over the year I have experienced this with some of my holdings. But some alts surprise all of us, and they make some incredible rise.
I think that people should stick to BTC and other top alts, but I like to experiment with some new projects and it's not bad to do that, as long as we don't risk too much. Having fun is healthy, and in some situations can even bring some nice profit.