It is unnecessairy source, because it does not matter how many soldiers were killed. What matters is that the Safavids were deposed. Besides that, mentioning that information WITHOUT making any remarks about the brutality of the Afghan forces - for example the complete massacre of the Safavid family (including women and children), as well as the massacres on the civilian population in Isfahan, Bam, and villages of Khorasan - is considered POV. 
 Besides that, you have not shown any sources for your claim that "30000-100000 soldiers were killed". 
 And as for the edits: it does not matter what YOU believe, it only matters what the Wikipedia rules are. You posted a message without editting ANYTHING ... that's the same as abusing the article's history as a message-board. Use the REAL message-board instead.