“Sign up for free access to this post”.

I'm aware that a link is attached which bypasses this restriction, but if I have to break the law to read the article or alternatively hand over my personal data, then I think it shouldn't have been shared here in the first place.

Archive.is and its variations sadly also exploited their users to DDoS another website and falsified data; they also refused to comply with data protection regulation in the past, and remove personal data from their websites. Wikipedia banned the service entirely and removed all references.