I am a Sikh scholar and a Khalsa, I've studied at Cambridge university & Guru Nanak Dev University and studied under the leading Sikh sant of Punjab there is nothing that says you can't have third name in Guru Granth Sahib I have have a third name and many of the Sikh Khalsa Scholars at the Golden temple have third names. Anyway please do not try to vandalise the site again otherwise I will a get administrator to block you for vandalism.