Seriously? I was gone for two hours to watch the final episodes of Angel Beats and I come back to a civil war...
I'm going to assess the situation in the lines below, but I can immediately say neither of them are harbingers of justice in this.
English) Zomgerd's English is good enough for an angry person who was born and raised in America/Britain. Groovex's English is reminiscent of a machine translator such as Google Translate due to the garbled phraseology and general misinterpretation.
Help) The only one who gave Groovex any help towards their apparent goal was Risha. I teased them for necroposting and Zomgerd just slowly became more and more emotionally unstable. My off-comment about Lift Gamma Gain was simply to correct Risha's statement.
Inquiry) Groovex's question was, I quote "Can you tell us in more detail what else besides the vibration and curves must be included, which would achieve the effect of HDR?". As a native English speaker for my entire life in America, I can not think of any other way to interpret it besides "What effects do you use as a substitute for the HDR shader?". Therefore, Groovex's frustration was unjustified as no one in the thread knew what they were *actually* trying to ask until their fourth post, which quotes "I told about all effects, that he used in this preset. Used he only Curves and Vibrance or anything else." This statement has enough grammatical errors about it that it is difficult to understand. Again, however, as a native English speaker I can think of no other way to interpret it besides "What are all of the effects used in the preset in question?". As you can see, this is much different from thier first post.
Trash-talking) "Trash-talking" is generally an accepted term for insulting, teasing, taunting, etc. Therefore, what is considered trash-talking or not is subjective from person to person. Based on my personal standards, no one was trash-talking until Zomgerd's response to Groovex's accusation of said trash-talking. However, by other people's standards trash-talking may include my teasing of Groovex for necroposting or Groovex's belittling of people they disagree with (referring to them as "kid", etc.) I was actually surprised at how passive Zomgerd was until they lost their cool in their fourthth post.
Hostility) From my point of view, both of them portrayed hostility in their comments whether they intended to or not. I'm not sure what Groovex's deal was, but they have a predictable pattern in their tone. Zomgerd, on the other hand, was doing fine until their fourth post where they suddenly lost it. Personally, I don't think the situation warranted the sudden change of heart but alas I cannot hold my values against someone else's.
I'd say that effectively concludes the major points in this "civil war" and my thoughts on them. But that's just one person's opinion. Everyone should make their own.