"I'm sure his sarcasm was meant lightly, but it still deviates from the high quality of discussion I'd like to have"
Sarcasm and quality of discussion are orthogonal. It's very easy to have 100% "civil" discourse that is of absolutely no quality, and the only difficulty in having high-quality sarcastic discourse is the difficulty inherent in having high-quality discourse sans phrase.
Civility is a purely formal virtue (the virtue, in fact, of specious op-ed pages, where the only discursive sin is an uncivil tone), and it's far too common (one sees this in political discourse especially) for "lack of civility" or "uncivil tone" to be used to exclude people who are, often justifiably, frustrated or passionate about the topic at hand. It is of course possible for someone to be so relentlessly rude that there's no point in further (nb further!) engagement with them, but that clearly isn't the case here. It looks, to be honest, as if you're indulging in the first plausible excuse to avoid engaging with the problem the poster raised---and, what's worse, pretending, as you do so, that your hands are tied.
There is really no reason why all complaints or issues raised should be couched in a hands-off, disinterested tone. (Or rather, the only reason that all complaints or issues should be so couched is that normatively bad but instrumentally unfortunately good reason that otherwise people will take your tone as an excuse not to engage.) You're doing yourself no favors by getting on this particular high horse.
Sarcasm and quality of discussion are orthogonal. It's very easy to have 100% "civil" discourse that is of absolutely no quality, and the only difficulty in having high-quality sarcastic discourse is the difficulty inherent in having high-quality discourse sans phrase.
Civility is a purely formal virtue (the virtue, in fact, of specious op-ed pages, where the only discursive sin is an uncivil tone), and it's far too common (one sees this in political discourse especially) for "lack of civility" or "uncivil tone" to be used to exclude people who are, often justifiably, frustrated or passionate about the topic at hand. It is of course possible for someone to be so relentlessly rude that there's no point in further (nb further!) engagement with them, but that clearly isn't the case here. It looks, to be honest, as if you're indulging in the first plausible excuse to avoid engaging with the problem the poster raised---and, what's worse, pretending, as you do so, that your hands are tied.
There is really no reason why all complaints or issues raised should be couched in a hands-off, disinterested tone. (Or rather, the only reason that all complaints or issues should be so couched is that normatively bad but instrumentally unfortunately good reason that otherwise people will take your tone as an excuse not to engage.) You're doing yourself no favors by getting on this particular high horse.