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Yes, you have time to edit-war and restore the article to promotional version but not to edit to correct it. When corrected by some other editor, you claim it not to be perfect and do revert repeatedly. I see no good in promotional and unsourced tone and contents based purely on primary source.

Edit-warring? Did I make any edit without leaving an edit summary? It is you, despite discussing the concerns on here, you went on to make revert multiple times. I'm very much disappointed to see apparently an established editor behaving, yes, much likely to a WP:NOTHERE editor. It is you, who chooses to revert instead discussing the changes. You came here to leave a comment only after making a revert. Did you notice it? You choose to post a warning template on my talk page, instead initiating a discussion on article's talk page. You should post a edit-warring template yourself on your talk page, being honest seeing the page history. And, If I really am edit-warring, then I dare you to make a case at ANEW/ANI. 

You did not answer one previous question. Have you some 'conflict of interest' with the subject? And, the headline of the discussion is very much appropriate. You see good in 'promotional contents either unsourced or dependent of primary sources', and claim it to be encyclopedic. Is it really what you understand of encyclopedic contents? In my edit, the article has less contents, but at least it is encyclopedic, what Wikipedia is all about (see, WP:ENC). I do not care for contents, I care of standard. And, that's what I did when removed promtional, unsourced and duly based on primary source contents and you did re-instate the same multiple times (4 times, am I required to cite diff. links?) You say, ""[..]An article must inevitably describe its subject. It is the purpose of an article[..]"", NO, information present in Wikipedia articles should be based on secondary, independent and reliable sources and the same should be written in a neutral tone. Wikipedia does not accept original research. Maintenance tags are not an excuse to put in unsourced, promotional tone into any Wikipedia article. Do you understand it? I may expand more, if you want me to.  -Let's talk! "