It's in violation of various EU privacy laws like GDPR and the ePrivacy Directive.
They get discussed a lot here on HN so it's easy to assume everyone's familiar with them, but if you're not then you should search up a summary on them.
That would conflict with normal cookie terminology, where cookies are "set" and packets are "dropped".
But much more importantly, it is completely impossible in the context of the thread:
> [Accusation 3.] On their cookie banner, rejecting took two clicks while accepting took one.
> On 3, Microsoft argued that (a) rejecting was not actually required to be as easy as accepting and that (b) since the default was no cookies and it took a click to get cookies that rejecting was easier than accepting. The CNIL disagreed on both.
They get discussed a lot here on HN so it's easy to assume everyone's familiar with them, but if you're not then you should search up a summary on them.