I note that creating a bot with delegations creates a larger pool of SP to flag with.

I have too little SP to effectively flag various abusers. Did I not oppose bots voting, I might well delegate to @sadkitten. Paradoxically, I am giving the matter thought, as automated opposition to abusive automated financial manipulation may actually be appropriate.

I wouldn't delegate to hide my participation, and I have no fear of flags. I would delegate, if I did, in order to add SP to the flag pool, so it would have the ability to counter more SP.