OK. This is about commas. I'm not native english speaker.

Sorry, I couldn't resist :)

I understand sacrasm (or irony - never could tell the difference without overthinking), but I believe that Metro will become more usable over time.

I, think, you're, still, missing, his, point;

Hint: It had nothing to do with Metro and everything to do with this character ','

And if you can't tell the difference between sarcasm and irony without thinking, never mind over-thinking, then you likely understand neither.

Edit: The initial reply to you was neither ironic, nor sarcastic.

but Metro is quite nice.