Meanwhile, back on the topic -- cruelsister tested OSA with it set at "advanced." She did so because many users set OSA that way.
OSA is a specialized security app that will greatly strengthen the excellent security already built into Windows. VoodooShield is another example of a specialized security app.
To me, setting a specialized security app to intentionally run BELOW its most aggressive level is a user problem more so than an app problem.
IMO, setting a security app to be less aggressive is like getting a Rottweiler to protect your home and then: (1) having him neutered so as to be less aggressive, and (2) not training him, and (3) scolding him when he barks or acts menacing toward a stranger.
IMO, OSA should be set at its maximum level of aggressiveness. Yes, OSA will block a number of apps during the first several days, but developing exclusions is easy. This brief training period will soon configure OSA so that it remains aggressive but reasonably unobtrusive.