It depends on many factors, such as mood swings, circumstances that people are in.
What I mean is, some people start answering your post they have a very good mood, nice words and good ideas for your thread, suddenly wife comes in and gives him a hiding, then he still finishes the thread but in a different manner.
That might be a bit extreme or not a really good example, but I just want it to transfer the idea, that many factors play the role in our behavior.
Sometimes when I get rude responses on my threads I fantasize about being Magnus Carlsen is disguise. I fantasize about the look on the faces of my doubters when I'm revealed to have been Magnus Carlsen in disguise the whole time. I fantasize and wonder "Would I get more respect after I reveal that I had been Magnus Carlsen in disguise", or "Will they beg for my forgiveness", and I would say "You must treat everyone equally". It's like that show Undercover boss. It's easy to bully a beginner, but harder to accept him as one of your own. Let's treat everyone as they were Magnus Carlsen in disguise.