::::"Many"?  Hardly!  You seem to believe that if you believe your edits improve the article, then ipso facto the article is improved.  However, your edits clearly have not improved the article and in fact have resulted in the article being downgraded from "B" to "start" class.   So far, there are two editors besides myself who have reverted your edits: 1 and 2.  Again, as for "causing trouble," see WP:AGF.