Because your eyes can play tricks on you.
And cause you to be tricked.
Like this letter that you just received...
This is a database for Singapore companies on www.companyregister.sg, which is operated by Data Register and not by the Accounting and Corporate Regulatory Authority of Singapore.
Yes, this is the same company that ACRA has brought charges against (78 charges as at last count - maybe ACRA decided to keep the number auspicious).