I had a quick flick through the GQ article before my work internets blocked it for “incidental nudity” – it seems that SirChris was just pointing out that you should wear whatever, not really trying to lycra shame.
There are a lot of people who seem to think it’s necessary to put on specialist sports clothing for a saunter to the shops or work – it’s a reflection of the fact that cycling is viewed as a sport not just a normal way of getting about in this country. Of course I don’t care what someone looks like in lycra as long as they’re comfy, but at the same time, people are buggering about putting specialist clothing on when they could just hop on the bike in their normal stuff.
Baggies over lycra is just as bad in this respect (but is my usual non-XC racing MTB outfit all the same, because I’m a fashion slave. Also I wear lycra on the way to work these days, but it is a bit over 10 miles each way and I take the opportunity to ride hard).