Manage your information, just like anything else. 'Tis the Information Age. Your government does it to you all the time.
(On big news days, dig harder and you'll find all the stories they didn't want to get headlines. And "take out the trash Friday" when everyone's in a good mood and thinking about their weekend plans. Hiding information in plain sight and disinformation are what political managers are hired to do, these days.)
I may post while we aren't home, I may post after we get back. I may post that we're not home when we are. You just never know.
There's other criteria that come into play too, which I will not divulge. Good neighbors help too.
We had some azzhat multi-time offender try to kill an 80+ year old lady a few years back... He was going door to door selling magazine subscriptions and she somehow tripped his broken mental trigger. He broke her neck and left her for dead.
She recovered and since then, our neighborhood is exceedingly hostile toward door to door salespeople and we typically "meet" in the street regularly and have a good chuckle about how fast we drove the latest ones off, on a regular basis. We also are pretty observant and ask about anyone we see who doesn't normally belong in here.
We also all know each other well, which is exceedingly rare these days in many neighborhoods.
The really awesome part? We do it all without any overbearing, lame, busybody Homeowner's Association.
Our HA does what HA's should, throw Easter Egg hunts for the kiddos, Dumpster Days to make sure everyone dumps stuff they need to get rid of, repair and maintenance of fences along public access edges, plant flowers, all that stuff. No "Archetectural Board" or lawyers or management companies or any of that crap.
If we don't like something a neighbor does to their house, we just say, "Bob, that pink siding really looks like crap man. I'll bring over the beer if you want help repainting."
Old school, low pressure, but you're going to hear it from EVERYONE. When my front lawn died in a drought, I was seriously sick of hearing about it by the time I got the quotes done and the new sod laid.