Isa 61:1 The Spirit of the Lord GOD is upon me; because the LORD hath anointed me to preach good tidings unto the meek; he hath sent me to bind up the brokenhearted, to proclaim liberty to the captives, and the opening of the prison to them that are bound;
I believe whom God calls, he annoints..
Now, how they deliver the preaching is a different matter all together.
I too, have heard so many equate anointing with loudness, or gymnastics..hehe
I have heard quiet preachers I know are 'anointed"
Just my 2 cents...