Everyone's situation is different, and everyone's risk tolerance level.
For those that have been in the space for a while, many will likely not be throwing money at every new "project" that comes out as they'd already likely done pretty well. However, someone just starting with a lower amount of capital is likely to swing for the fences. They will either do very well or lose most of it.
I strongly disagree with whoever said those that "HODL" will do worse and end up with bags compared to those that trade in and out. I can't disagree me, and I strongly believe it's the complete opposite in most cases. Holding, IF it's an established coin is likely going to end up much better for someone than trading in and out of different coins.
.
To each their own though.
.