Snezzer- if you mean message threading the way Yahoo implemented it, then I must disagree. It is almost completely useless. You can never find a good description of the thread as it just happens to be the message title which in this example could be "DISAGREE" and not get filed under message threading. Users of the system would need to be very disciplined to include useful descriptive titles. This won't happen. However I will agree if you get a good thread descriptor then it can be useful.

The only decent attribute of the Yahoo board is that you can skip all messages of less than a certain star ranking.

Below is a page from Yahoo for AAPL right now.

Topics Avg Rating Replies Latest Post (ET) Gore's Message To Climate Change Skeptics
by drsmith332... [27-Mar-08 03:04 pm] Not rated 35 12 second(s) ago
by spectorino Someone just dumped 1,654970 dollars worth of
by teamsurviv... [16 minutes ago] Not rated 6 1 minute ago
by amfads When the CFO starts cashing out...
by amfads [7 minutes ago] Not rated 5 1 minute ago
by briangoeli... CRAMER SAID!!!
by salvrrl [26-Mar-08 05:02 pm] Not rated 2 3 minutes ago
by tallguy665... BMO upgrade today
by sbushnik@r... [3 minutes ago] Not rated 0 3 minutes ago
by sbushnik@r... Tumor growing out of Steve Jobs forehead
by aearnd2 [13 minutes ago] Not rated 1 9 minutes ago
by bearmarket... FREE MONEY...SHORT MERRIL LYNCH (MER)
by linkadia10... [15 minutes ago] Not rated 0 15 minutes ago
by linkadia10... Hillary Was Being fired Upon in Bosnia-video proof
by minimaldip [16 minutes ago] Not rated 0 16 minutes ago
by minimaldip Covered short at 140.86
by marinesare... [17 minutes ago] Not rated 0 17 minutes ago
by marinesare... Looking for a dividend
by aapl4thete... [23 minutes ago] Not rated 3 17 minutes ago
by aapl4thete... two days in a row aapl outperformed rimm...
by superhappy... [18 minutes ago] Not rated 0 18 minutes ago
by superhappy... WALL STREET BS GETTING EASIER TO PREDICT AND TRADE ...
by greenegggs [41 minutes ago] Not rated 1 20 minutes ago
by aapltrader... Jim Cramer's Mad Money In-Depth, 3/24/08: Happy Da ...
by dexter_is_... [21 minutes ago] Not rated 0 21 minutes ago
by dexter_is_... everybody said we hit bottom, so buy now for the b ...
by there_all_... [35 minutes ago] Not rated 2 22 minutes ago
by there_all_... aapl news coming out
by marinesare... [37 minutes ago] Not rated 6 22 minutes ago
by amfads Hillary will supply I-Phones to the poor.
by gen_maximu... [29 minutes ago] Not rated 0 29 minutes ago
by gen_maximu... Tough day. I almost lost it and sold my options
by sirrells [39 minutes ago] Not rated 2 31 minutes ago
by isonplunge... hold on 143.88 shorted for tomorrow
by aeadmd2 [26-Mar-08 05:41 pm] 31 33 minutes ago
by orkydea Jim Cramer's Mad Money In-Depth, 3/24/08: Happy Da ...
by dexter_is_... [35 minutes ago] Not rated 0 35 minutes ago
by dexter_is_... something is up. flsr aapl financials LEH
by amisock [51 minutes ago] Not rated 2 36 minutes ago
by bubblebust