The practice is debated: some collectors deliberately contact bidders and/or sellers; in rare cases truly unwitting sellers can thus be enlightened; but in nearly all cases it is conscious fraud, so the effort remains in vain. Other collectors basically contact no one with the justification that 'greed eats brain' and potential buyers should research themselves before purchase. If sellers do not respond to a first email, a direct report to Montblanc is recommended — the maker actively pursues such hints. On successful sale of a counterfeit the buyer can additionally file a complaint.