There are certainly plenty of examples of poorly implemented banners attempting to comply with GDPR while not actually being compliant, where consent is required, but I wouldn't call those 'cookie banners' since they generally talk about privacy and personal data, not just about cookies/local storage.
My point was that there are plenty of websites that don't need to comply with GDPR (because nothing they do falls under its scope), but they still need to comply with the ePrivacy Directive and therefore there are plenty of cookie banners used for that purposes that are a perfectly acceptable way of complying with that law - though because people are more familiar with GDPR than with the ePrivacy Directive, they see those banners and think it's a non-compliant attempt at dealing with GDPR.
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I think, but don't quote me in that, that with ePrivacy you don't really need a banner, but an explanation that you use cookies. But that is a minor issue
Hearsay and rumors, so don't take this seriously
But it's from 2017... https://eur-lex.europa.eu/legal-content/EN/TXT/?darkschemeov...
(If the twitter discussion was interesting, any suggested accounts to follow for this sort of topic?)
I guess you'd want follow
- Felix Reda https://twitter.com/Senficon (former European MP for the Purate Party)
- NOYB EU https://twitter.com/NOYBeu (fighting the GDPR fight)
- Max Schrems https://twitter.com/maxschrems (https://en.wikipedia.org/wiki/Max_Schrems)
These are more or less the usual suspects you'd follow :)
The cookie banners people are now complaining about are literally companies skirting or otherwise breaking GDPR. Because they now have to ask for your consent before the siphon your data and sell it wholesale to the highest bidder.