Having previously read this discussion and everyone’s advice to “shout for a party invite”... last night I finally got to be in the right place for an S mark, did that, and all I got was two people telling me to look in the Party Finder instead. The mark was engaged before I was into the menu, and dead before I could get out and re-target it.

So, I don’t know if it’s a server-by-server etiquette or what, but apparently shouting for an invite is “the wrong advice” for my server, as I was told afterwards.