How the newsreader see the domain attribute of the category element

[Emmanuel Décarie <emm@scriptdigital.com>]

I posted a question on the RSS2-Support list and Dave W. kindly replied. But I'm not 
sure if I correctly understand his answers. Since there is a lot of people here that 
implement aggregators and newsreaders, I though I could ask also here to hear from 
other implementors.

If you have time, please check this thread:

http://groups.yahoo.com/group/RSS2-Support/message/309

I'm trying to implement some sort of spec related to eLearning. What I'd like to do in 
the long run, is to see if a quiz could be build in a weblog and dissemated by RSS 2.0. 
Its a long shot.

Anyway, here's the crux of my question.

What I have in the back of my mind is how the newsreader see the value of the 
domain attribute. Are they automatically inferring that its an url and create a link that 
have for value the value of the category tag?

For example I don't want:

<category domain="1">question</category>

Parsed in a newsreader as:

<a href="1">question</a>

TIA

Cheers

-Emmanuel