This article has some good points for people who are new to Objective-C, but (much like the comments you complained that people were downvoting) the snarkiness

This article has some good points for people who are new to Objective-C, but (much like the comments you complained that people were downvoting) the snarkiness and condescension tends to distract from it. Anyway, thanks for posting it. FWIW, I'm one of the comments you linked to as being unhelpful.