exactly, it's tiring manual work to flag 1000 minnows who delegates 10 SP each. plus as you said since they are basically self-voting any SP is spent falgging others is less $$ for them.
It's an uphill battle though. Most minnows might not know how to delegate SP, and those who knows still needs convincing to get pass the fear against the titan.
"How to delegate Steem power the easy way"
https://steemit.com/delegating/@jackmiller/how-to-delegate-steem-power-the-easy-way
Hahahaha im just about to make a tutorial post on delegating SP with steembottracker tool!!