Dan,
First, welcome to Flyertalk!
Second, you are at the right place.... we are those weirdos that look at that trip you mentioned and wonder why there are not more segments?... and which airline did you travel on?
Seriously, Flyertalk is a wealth of information. You should take the time to check out all the nooks and crannies... there are many!
Check out the forum for your favorite airline and/or Alliance. That is where the "weirdos" from your favorite airline hang out... my favorite is United and Star Alliance.... being in Atlanta, you might be a Delta fan.
Also, check out the Mileage Run and Hotel Deals forums. That is where people post the great deals they find...
Find a way to attend one of the Mileage Run seminars that are offered by one of our outstanding members. It is a great way to meet other Flyertalkers and get great information on producing 10 segments trips between ATL and IAD...
Check out the Community Forum for information on Flyertalk events that are taking place... it is a great way to meet people in person... and make new friends.
Hope that helps as a start.
William