I've done testing on my TDK VeloCD/Lite-On 48x CDRW drive and it actually does better burns at 48x than 32x or any other speed. It burns even worse at slow speeds like 4x or 8x. Counterintuitive, but true for me.
48x is 50% greater than 32x. That is by itself, even if ignoring the ignorance of the reply, quite large I think to most enthusiasts. That probably cuts about a minute and a half off of burn time, which is significant to many people, especially those doing multiple burns. I don't see people buying 32x drives over 48x ones because they are "better". But I have seen and myself paid extra money to get a 48x over a 32x. And I say this myself having a 4x SCSI CDRW Yamaha burner in my machine right now as I type, and I never complained about it. My VeloCD only burns a 50-stack of crap CD-RW's I have at 10x vs the rated 12x on the final firmware, and let me tell you that is one thing which really has bugged me.
And suggesting that people 'put up or shut up', instead of asking questions about a hardware/media setup which is not working as advertised, is an inappropriate forum post in my opinion. I think the worst kind of forum posts are the ones which question why a person asked a question or has a problem with something not working properly. This is a discussion group. The only time I would tell someone not to post is if they are suggesting to someone not to post (aside from other expressed animosity). People asking questions is the lifeblood of any forum. The original poster is not even tweaking; he's just trying to get it to work properly, which it isn't right now, despite matching media & burner specifications, on a newly-released drive & firmware which is being sussed out in these very forums by exactly this sort of question.
So you're wrong declaring some kind of universal superiority of 32x over 48x, and also wrong to seemingly insinuate that the poster is "complaining" instead of using this forum exactly as it is supposed to be used. I am personally seriously considering this drive and follow such posts with interest. I for one am concerned about surprises if I buy this drive, and hope that these issues are resolved before I do. People like the original poster move everything in the right direction.