[dionidium]

The only problem with this technique is that people start dropping in commas everywhere they'd take a breath. It's a pretty good approach, otherwise.

[zo1]

I have that habit, though not because I read my stuff out loud and use pauses as an indicator for comma placement. It just reads better to me, with having "semi-separators" that I don't quite feel justify a separate sentence, but help with the flow of what's being said.

Looks like I did it twice just now.

[kwhitefoot]

Excess commas seems to be an especially US problem. Here in Norway one of my sons had Norwegian teacher of English who studied in America. We often had to point out that half the commas she wanted in his writing were unnecessary.