The little guys use TA to guess what the big guys are doing according to FA and to divine what the Market will do next. Edit: Sorry, I post in wrong thread.
Insiders are about as smart as the Instututions when it comes to getting in and out near the right time.
Credit goes to Mokwit for this EXCELLENT article (yes, I've posted about it in three threads, because it's that good IMO, and I wanted to share): http://www.economist.com/finance/displaystory.cfm?story_id=10656844