yes
i think the my question is pretty straight
Who is Kabir ?
Who is the person who was called Kabir?
What is difference between the person called Kabir and Kabir?
From my understanding.
Kabir ji was the son of a poor Muslim weaver (seen as a so called low caste). He was a devout Muslim and also had some good Vashnavite aquaintences.
He saw the death and desctruction that was cause by the invasion of Tarmalane/Timur.
Timur massacred Hindu's en masse:
Something like 200,000 Hindu's were massacred in Delhi and something like 50,000 massacred in Benares (where Kabir Ji lived).
He saw innocent people murdered in the names of Islam. Kabir vehemently criticised the Mullah's for sanctioning this and stated this was against Islam.
His views because very anti-violence and moved towards Vaishnavism. Many of Kabir's shloks should be read in the context of History they were written in.
Read more on Timur:
Memoirs of an Islamist - Timur
Some of Kabir ji's (not all) shloks were incorporated in the Sri Guru Granth Sahib ji. Some of the views of Kabir thaat are not included in Bani seem not compatible with Sikhi, however, Sikhi seeks to find commonality rather than difference.