Ignoring threads (was: How do we get Mac vs Newton threads out of csa2?)

[Pim Blokland <pDOTblokland@spcgroup.nl>]

Perry Dueck wrote:

> What I should have said is: Use your newsreader's features to
> automatically ignore such threads...that way you won't have to do it
> manually/visually.  :)

Ah, that's a good idea! Trouble is, I have no idea how to do that.
Could you tell me how to instruct Netscape to ignore certain threads?
And while you're at it, I also like to know if it's possible to have
Netscape ignore anything that is crossposted from
comp.sys.idiots.advocacy.
TIA!

Pim Blokland
if replying by e-mail, replace the DOT in my name with a dot
if spamming, use another addres, such as michel.maisonneuve@sympatico.ca

PS yes, I know, this is not on topic, and you also may have guessed that
I'm not using an Apple II to read this newsgroup, but feel free to
forgive me.