According to De Joode those so-called bullet proof hosters are neglecting every abuse notification regarding spam and malware because every Euro counts.
He feels that hosting providers like that do not belong in The Netherlands.
Lengthy Dutch language news article and lengthy comments here:
Lengthy history of Leaseweb here:
Leaseweb’s Security Officer Alex de Joode: Police, Public Prosecutor’s Office And Investigative Judge Have No Clue About The Internet