"which pretends to be Anonymous"
anyone can be considered a member of anonymous, they do not have a members list or anything like that
"who published sensationalist and mainly racist bullshit and lies, half-facts without context..exactly what could be considered fake news!"
examples?... and this site is separate from the facebook ads i suppose? or are the facebook ads based on this site?
Use some Google translate if you must.
and no, Anonymous have several times officially declared the guy stands against their ideas and is no part of Anonymous. The guy used to run the Facebook page for Anonymous.Kollektiv, his former name but was banned by Facebook a while ago for posting hate speech and misinformation.