Are pressure cracks on a skateboard bad?

Answer 1

YES! Although not immediately damaging, overtime pressure cracks cause a deck to lose its shape much faster than it would normally. They also contribute to a board being "soggy" or no longer rigid.

But: Pressure cracks are only a problem if a board is used for a certain amount of time (about a month for me personally), so they only affect skaters who tend to use the same deck for months at a time.

Source: 12 Years of Skateboarding experience