Can someone provide an explanation?
I suggest you to read posts of
jvanname and after that you'll understand the definition of a troll in the best way possible. I've gone through some posts of the user that I mentioned in the past and there's so much trolling in his posts. There're of course more examples but this one is enough to help you understand what a troll is and how they so trolling on this forum.
You have just given the perfect example of who a troll is. I use to entertain his posts earlier thinking that he is someone that actually knows what he’s saying and mean what he’s saying, it was later I found out that he’s just a troll and the best way for me then is to ignore his posts and let him be. He is in the ignore list of many users in the forum who have known him for trolling and he never stops as long as you keep replying to his posts. It’s been a while I saw his posts but maybe because I’m not that active on that board again. Although I have not ignored him, I just skip his posts and threads when I come across them. OP have just gotten the best example of a troll and needs to search no more by going through the post of this user.