I am surprised by your score... I think this deserves to be well above 6.... I gave it a 9 myself. Never would have thought it was a lampstand... thought it was a macro of a screw or a nail.
aruably not liney enough (I think it is), possibly washed out (on the face of it I think it is but the more I look at it the more I like it), somewhat abstract (zorks lines calls for that I like others may not).... and as an aside you could have put this into the pasta challange and got away with it !!!
I think its one of those pictures folks either like or dont which is why overall it bombmed a little (though for me 5.9 would be an acheivement) but for the commentators avg it score rather highly.