This statement quoted from the above is not comparing Sri Guru Granth Sahib to a mere book or to a picture. quoted material.
We are told to read and understand gurbani, not perform rituals to it, what the hell is the meaning of that, its like doing the same thing to a picture of Guru's, UTTERLY WASTEFUL end quoted material
The author gs_channa is saying that aarti is like worship of a picture of a Guru.
gs_channa is not s aying that Sri Guru Granth Sahib is equivalent to a picture or a book.
It is very clear that gs-chana is speaking against the inclusion, revival and/or maintaining of ancient Vedic practices associated with the worship of idols in gurdwara services. His position (I think it is a Singh) is clear
. more quoted material
Guru Nanak REJECTED aarti, namaz, prayer, etc = WHY BECAUSE THE ONLY WAY TO COMMUNICATE WITH GOD IS TO MEDITATE UPON HIS NAME end quoted material.
gs_channa's point of view is in my opinion entirely in keeping with SinghSaba understanding. Let's be careful to react to the actual meaning of a poster's words.
On an historical note -- initially the Gurus were surrounded by Hindu mandirs. Mandirs that were governed by Sikh sangats came over time to be what we think of as gurdwaras. This happened gradually. A good book that explores this through some early chapters is the autobiography of Gurnam Singh entitled,
East of the Indus: My Memories of Old Punjab.