It's not about reasoning with him bro. Quite clearly ice man is a time waster and the vast majority of his conversations with people aren't even about a topic.
Firstly as you know, we are commanded to speak good or to remain silent. Secondly there is a lot of benefit from not speaking to him rudely - less sins for yourself, it gives a better appearance of Muslims, ice man generally is a gift for us - I'm adamant that his posts do not help any shias who read the forum and may even cause them to increase doubts in shiaism.
We have an audience for our posts, tonnes of people read them, we need to make our posts count. Imagine if some shia who already has doubts is reading your post, he may just bite back on his doubt and his pride may activate by seeing the language used, so think about how your posts may affect those readers.
This isn't a lecture to you either. I am sure you are a better Muslim than me.
I agree with everything you have said - except the bit that I am a better Muslim than you - but I have had it with their lies.
Believe me when I say this - and let this Iceman khabeeth read this - that I used to think that it was the "evil" Sunnis who had marginalized the Shias instead of including a fifth school called Jaffari along with Maliki, Shafi'i, Hanbali and Hanafi. In fact, I used to dislike Abu Bakr (ra) and Umar (ra) because I used to think that the "evil" Sunnis cannot accept a second or third opinion, due to their love for the first two (ra), when it comes to succeeding the Holy Prophet (saw).
Turns out that these Rawaafidh scum - though I consider Shias to be Muslims but upon massive misguidance - believe that Imam Ali (ra) was appointed by Allah (swt) which automatically makes every person who accepted Caliphate to be kafir along with those who supported these Caliphs.
I religiously attended Muharram lectures from 2012 - 2018 and learned how weak, in fact ugly, their beliefs are! I still respected them. However, the straw that broke the camel's back was when I found out that they curse the children of Imam Hassan (ra) and even from among the descendants of Imam Hussain (ra), there are those whom they curse only because they did not believe in their fairytale Imamah or believed in a different lineage of Imams (ra).
They start their dawah with the lie that they are supporters of Ahlul Bayt (ra) and there is not another Muslim sect that curses the Ahlul Bayt (ra) - Mothers of the Believers (ra), uncles of the Holy Prophet (saw), cousins of the Holy Prophet (saw), descendants of the Holy Prophet (saw) - as much as they do.