If you can't see blatant stiring of the pot, I don't know what else to tell you. If a person really needs to conceal that sort of activity, then they will make the effort to make sure each tx goes to a new address. Period. End of story.
What do you mean "stirring the pot"...? Coming onto a public forum and making a noob question? I didn't see any provocation there. Maybe I'm missing something.