I did not saw you ARE arrogant, I said you posts come off as arrogant. You are entitled to how you feel, but you are comparing someone elses standards to yours. You could have left it, but you came back to this thread specifically to say "I told you so." There is absolutely NO need for that. If any of us stumble, we know it well enough, without your coming back to say 'neener neener neener'. Its school yard tactics, and it is not helpful.
What you deem diplomatic, I deem bullying. Difference of opnions. You are young as you admitted. I am not. Been there, done that, dealt with attitudes like yours alot in my years.
Carry on with your views and opinions, by all means. But if you offend, be prepared to hear back about it. Not many people here playing victim or adaptive child anymore.
You very well may stumble one day, and I bet you would not like us to come rallying around to say, "I told you so." Which no matter how you choose to put it - is exactly what you did.
Two threads, and you have had generally the same feedback. Might be worth a think, me thinks.