Not all projects are suitable HODL.
I am agreed on this part that holding for all projects is not suitable, many a project can turn into scam and also many project might be delisted and for the delisting the price of the coin can be down and even the price of the coin can be 0.
Few have a better chance, while most will surely turned into a dead project, dev will enjoy with amounts that they already collected and re create another
using different teams and offer another sort of ideas, always best to make a good research about projects to support and hold for longer terms.