How involved should commands get in personal affairs of the service member?

PO3 Danielle Sandlin
If it is illegal or is affecting your job performance or makes the Navy look bad, then your command has every right to get involved. Hell, it's their responsibility to get involved. This is the Navy, not a 9 to 5 civilian job.

Capt Seid Waddell said " As little as possible." True but IMHO needs "As much as needed" to be complete.
Like it or not, everything we do as Service members can affect our service of this nation.
Its only "Personal" if it is, and sometimes that means finding out enough to know.
And some of what a service member WANTS to be off duty "Personal life" .. drug use, out of control gambling, associating with known criminals, terrorist org, theft, other additions that effect service.. ect....Well they can want all they.....ahh want... but if it affects the service it's not personal life issues.... so stop, or deal with the fact the command IS going to be involved.
Service members are free to disagree,,,, normally every few years for enlisted and almost any time (after obligation) for Officer.

Always a good question and always a challenge where to draw the line. Anything that affects the Good Order and Discipline in our Armed Forces needs to be addressed by those in Authority, Unfortunately everything you are and do while wearing that uniform has the capability to "Affect Good Order and Discipline".