Okeyyy...If I getting down voted these many times,hardware hacking may not be cool.Or did something else ticked someone off?Please any comment might help me understand what is so offensive about this post.

I'd guess that your tone, combined with the borderline off-topic-ness and the fact that you haven't really added anything to the conversation ticked people off. I wouldn't and didn't downvote you based on that comment, but certainly wouldn't upvote. I suspect if you'd phrased it differently and maybe made it a little more useful, people would have responded differently, e.g. "I really admire these calculator hackers, it's amazing what can be done on these simple machines, e.g. these cool games: [link], [link] and [link]."

The HN userbase appreciates a high signal/noise ratio. Merely calling something "cool" is considered noise.

Hope that helps.

Get the fuck off this site.

Ok the mentioning that they are cool can be a bad post but not that bad dude.Cool your heels