Yes, ECC is vulnerable to quantum attacks; we aren't talking about quantum attacks on this subthread.

Is it unreasonable to call a thread that decidedly ignores quantum attacks worthless? I mean, absolutely speaking, given that quantum attacks really are or will be out there, is it not bad advice to suggest systems be built with quantum-vulnerable algos?

See: scythe's post https://news.ycombinator.com/item?id=7004561