If someone -- or any company for the matter -- can afford or not bad PR is way beyond the point.
The thing is : you usersy might be wrong,or might be right ; but the point is more that users are your even more than your whole business, giving them a good experience is your ultimate goal ; not just selling them a microblogging app.
In my opinion, comparison to steve jobs / apple here are extremely irrelevant ; yes, steve jobs might have earned the right to be obnoxious to bad clients, but the point is that apple as a company doesn't.
For one thing, its because their marketing goes hand in hand with their excellent customer service that this company is successful. Not because one compensate for the other. Its really a shame that somebody can treat its user base like that.