In an online game, before a new round of game began, I said 'I am noob as hell', and the player, a total stranger, next to me said 'chill out, bro'.
In the Free Dictionary, 'as hell' is not labeled as 'offensive', neither is it in the Cambridge Dictionary. That is a bit weird, since the phrase is not offensive, why did he/she bother to tell me to chill out. (I didn't say any other thing other than that statement, neither did I do any other thing.)
What does the use of 'as hell' sound like to a native English speaker?