Theoretically, low capital means having low market interest, this can be assumed to be several things from the user's perspective, for example there is clearly no prospective value from these projects. If someone comes in, for me it is pure betting rather than investing.
I don't remember if I've ever had a portfolio like this before. If so, I'll make sure they're dusted.
that is true usually trading volume is also low, but that what makes these coins are so volatile and fluctuative, the fact that they have so low trading volume are making them vulnerable towards manipulation.
you usually could find such coin being labeled as shitcoin and that definitely not without reason, they are labeled shitcoin because they are considered garbage and subpar compared with real altcoins that present value and fundamental.
these coins usually are just used for manipulation, there are the ones that manipulate and there are people that wanna rides in that wave of manipulation hoping they are lucky to go against the wave.