Tangentially related to this: Is storing passwords actually hard, or is it knowing know to do things like this that is?

I've seen a lot of people on HN talk about how they never store passwords because they don't want the liability, and I've seen some talk about how they do since it's simple. In my experience, hashing with Argon2 and keeping that in the DB (for toy personal projects) has been very easy, especially to how scary keeping passwords seems to have been made.

I guess my real question is: If I'm hashing with an actual password acceptable hash method (salt and all), is there any reason I shouldn't still do this? I'm legitimately interested, because for all I know, I'm experiencing the Dunning-Kruger effect.