This is obviously one lesson that you have not yet learned in life.
Breaking down others to gain some sort of personal satisfaction will not benefit you in the long term. You might feel cool and get some happiness from it, but everyone else just thinks you are an *******. Doesn't really seem worth it to me.
Why do you care if a stranger thinks he can become a professional golfer? It has no effect on you at all.
Wow. You are reading far more into it than I intended. I look forward to one of those beginners come back on here and let us know the progress they have made in becoming a tour pro. I'm unaware of any that have so far, but I could be wrong.
But if you want to call people names because of that, I guess that's your right, but it doesn't seem worth it to me, either.