CD, these posts you are speaking of are from "LeJeune Underground." I've read them, too, and your characterization of them is misleading, IMO. It's not a military site. It's a site that military members and spouses have created to chat about what's going on in the LeJeune community -- not necessarily on the base.
First of all, of course it's a violation to post military operations -- that's what spies do.
Secondly, the accounts they were talking about were the Laureans' accounts on the LeJeune Yard Sale page. That account was removed from the Yard Sale data base because Christina had offered some suspicious things for sale, and her phone # and email were on it, and people were trying to call and email her to threaten her. Her ad was reported to the police.
And, yes, the base commander sent out an order not to harass the protesters. She didn't want a violent confrontation with them. Most members of LeJeune Underground are civilian spouses, though, and do not have to obey the base commander. (By the way, the protesters were coming to say they were GLAD Maria had been murdered.)
Far from the site becoming quiet, it is and has been very active. Lots of interesting info on that site.