My experience is that it is a matter of small import to anyone but ourselves. There is the occasional, "Oh, was that you out there?" or "My brother rides a bike." or "I hate biking.". I suspect it's seen as mildly eccentric, but in a workforce population featuring the demonstrably insane, commuting by bike as a distunguishing personal characteristic, good, bad, or otherwise, falls well short of anyone's interest threshold.