I write snarky comments targeting opinions that express my thinking in a concise and funny (for me at least) way. Then you come and tell me to fix my attitude, directly judging my person. At no point did I judge you or used ad hominems.

>But you'll get your point across better if you quit the snark, that is all.

I'm not interested in getting my point accross, just in having fun. People have different objectives. Why do you want so much to tell me what I should do?

Now regarding your #2, there are many links between TV exposure and bad school grades. Everybody on HN love to say that you must be a pretty idiot to read the dailymail or watch fox news, so a correlation between low intellectual content media consumption and low intelligence would harly surprise anybody. Yet you reply with "That's the funniest conspiracy theory", a logical fallacy intended to ridicule while avoiding to answer the argument.

As you see, the whole conversation is rather useless, so snark is good enough.