On Mar 8, 2007, at 11:08 AM, Danny Ayers wrote:

For example, <div class="family-name">Novak<div> etc. might work fine,
but imagine you later discover an established practice amongst
biologists: <div class="family-name">Microhylidae</div>. Turns out
their existing systems consider your Costellos, Novaks and Smiths as a
classification term, alongside Narrow-mouthed frogs.

As their systems are astronomically unlikely to have wrapped their taxa in a vcard class, there is no clash.

Can you stop just making stuff up and pretending this is a problem please?

It's taking the responsibility locally by saying:

'we're ok to create a convention using class="family-name" because we
have mechanisms in place that mean other people aren't prevented from
using it for their own purposes'

Yes, wrapping it in a container class deliberately chosen to be rare.

In HTML, profile URIs are such a mechanism, and preempt such problems.

An additional benefit is that they use the web to good effect - the
URI can be dereferenced and further information obtained.

Profile URIs can be used to do that, or as you illustrated, they can be used to cause problems.

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