The thing is, @feld never said anything hateful about @roflc0ptic or anyone else.
There's a difference between between not respecting a person's beliefs, and not respecting a person because of their beliefs. It is possible to engage in the former while not engaging in the latter.
This breaks down, though, when people somehow equate what they believe with who they are, and thus if you attack their beliefs in any manner, somehow you are now attacking them. This isn't confined to any particular belief system or ideology (you see it in liberals as well). One should, however, be on guard to not let this kind of conflation happen to themselves, because it does nothing to further discussion or reflection upon the ideas/beliefs, and their likely veracity or usefulness to themselves and/or society at large.
Unfortunately, many people lack this kind of ability to self-reflect and understand that they are not being attacked or derided, but rather their ideas and beliefs are. There are very few cases in which an individual should not be respected because of their beliefs; these cases are typically when society has deemed such ideas/beliefs to be harmful or dangerous to society or others, yet they continue to hold onto those ideas/beliefs and/or promote them as well.
Otherwise, except for those cases, one should feel free to criticize, attack, or disrespect beliefs apart from the individual holding them, and that person should also understand that they are not the target of such - and should self-reflect upon why their beliefs are being viewed this way.
Of course - this can lead to absurdities - for instance, if all of a society deemed that hitting oneself in the head with a hammer was the way to cure a headache, despite objective evidence - to go against this idea while being in the minority can and would be extremely maddening and depressing.
One can thus understand why being an atheist in a country that is mostly religious, has almost no representation within their country's government, while being told that they are part of the problems of that country, that they are the immoral ones (despite what statistics really show about crime and incarceration demographically), and that the religious ones (and mainly of a particular religion) are the ones being suppressed (again, never mind the real objective facts of the matter) - can be an almost Kafka-esque experience...