Yeah but ... tells me nothing. That was used in SMF 2.0.x for the subsection indicators and I, who was actually involved in the front end stuff for 2.0.x, did not realise what the silly little dots were until about a year or so after 2.0.x went gold. I think that gives a pretty good idea of how useful they really are. 
Double right pointy thing has been done to death on SMF linktrees since time immemorial. I've never liked it much. I'm currently running this on local for the linktree:
/* Sized carefully for stability with non-standard font sizes. */
.linktree:after {
content:" \21D2";
font-size: 1.5em;
line-height: 1.4em;
position: absolute;
top: 0;
right: 0.3em;
display: block;
color: #888;
}
#ie .linktree:after {
line-height: 1.6em;
}
Looks much better IMO. Could also work for level 2 subsection indicators too. Try it and see what you think.