Of course it matters! I dare you to say otherwise!
In short, this whole mentality can be summed up in one handy webcomic -
[sub]I personally think it all boils down to people's deep-seated insecurities about their beliefs and choices and the questioning tends to rub them up the wrong way and they interpret it as a personal attack and it goes downhill from there and they flame and it's bad, m'kay?
*catches breath*
Phew.
/disclaimer[/sub]
But seriously, if you make a good argument you can at least get your opinions across to another person - even if they don't agree with you, they'll still understand your reasoning. Proper argument is very informative and is, hence, A Good Thing.
In short, this whole mentality can be summed up in one handy webcomic -

[sub]I personally think it all boils down to people's deep-seated insecurities about their beliefs and choices and the questioning tends to rub them up the wrong way and they interpret it as a personal attack and it goes downhill from there and they flame and it's bad, m'kay?
*catches breath*
Phew.
/disclaimer[/sub]
But seriously, if you make a good argument you can at least get your opinions across to another person - even if they don't agree with you, they'll still understand your reasoning. Proper argument is very informative and is, hence, A Good Thing.