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It's not very nice to tell somebody that u "don't see what's so hard to understand here". Especially when u didn't read his post exactly before. I don't wanna junior mod or anything like that here but u should maybe read the rules before u write something here.
That's really not harsh, it's a simple statement. I'm not entirely sure where you come from but where I grew up it's perfectly acceptable depending on the tone used. I apologize if you took it the wrong way but I did literally mean I didn't understand what was hard to understand.