Earlier quoted context omitted.
The HHS disagrees with you: https://www.hhs.gov/healthcare/about-the-aca/pre-existing-co... > Health insurers can no longer charge more or deny coverage to you or your child because of a pre-existing health condition like asthma, diabetes, or cancer, as well as pregnancy. They cannot limit benefits for that condition either. Once you have insurance, they can't refuse to cover treatment for your pre-existing condition…
Doesn't this create a huge incentive for people to buy rolling "temporary" insurance plans which can consider pre-existing conditions, and then switch to subsidizing off the healthy once they actually get a condition and buy the regular ACA plans?
The ACA originally tried to hide that vulnerability by making insurance mandatory, then it appeared when that forcible mandate was repealed.
Edit to reply to the reply: Right, it's not insurance. Insurance is pooling risk. If you wait until the risk event has already happened, it's not insurance, it's just paying your own costs with extra steps.