I haven't seen this discussed here yet. Wikipedia has decided to deprecate archive.today links because the site has been observed using the browsers of visitors to conduct a DDOS attack on the blog of an individual. Perhaps more troubling, archive.today modified archived versions of articles to insert the individuals name into the context of the articles.

related

"Wikipedia deprecates Archive.today, starts removing archive links" https://news.ycombinator.com/item?id=47092006

"Archive.today is directing a DDoS attack against my blog" https://news.ycombinator.com/item?id=46843805

"Ask HN: Weird archive.today behavior?" "I noticed this, like, 3 days ago) started automatically making requests to someone's personal blog on their CAPTCHA page" https://news.ycombinator.com/item?id=46624740