So you were just pretending to be unaware, never mind. Just a little request alway write Razi Allah Tallah Unho with Sahaba's name. Aap apna farz ada kero baki Allah ki marzi razi ho ya na ho.
For a Gentleman it is very necessary to even respect the Idols of kuffar or idols of his political rivals. Have you ever seen me absuing any Idol of any religion or any political personality here on this forum? If not then how can you expect from me to disrespect your idols.
Coming back to the word "Nahsal", I am really not sure if this word is a Bakwace or Tareef. But this word was used by Hazrat Aisha razi Allah tallah unho for Hazrat Usman Ghani razi Allah tallah unho & reported by Imam Bukhari in Sahih Bukhari.
Now I cannot dare to blame any of above for Sectarianism. I am just an ordinary person who try to learn from history, people & their acts as reported by authentic sources. I try to apply my independent mind to judge people or incidents. I am not like Kufar e Makkah, who were not willing to listen any thing against their man made idols.
Agar apko meray iss tareekay say ikhtalaf hai tu apko pura haq hai. I have no issue with it.