I think you are missing an important part. The Holonet is like the Internet in china at this point in time. It is very very tightly controlled by the empire.
It was never the internet, more like Teletext, with only certain news services able to post.
If you want an info hub, it can always be a private network accessed only via specific data kiosk or encrypted relay (for example, bounty hunter guild records).
Take note that the HoloNet has been blown out of proportion after the internet age begone, and the trademark was used to facilitate Star Wars website stuff.
http://vignette3.wikia.nocookie.net/starwars/images/2/2e/HNN.png/revision/latest?cb=20080822155755
The Rebels show a great example of the HoloNet via its news broadcasts... simple image projection of a news story. No search option, no sites...
http://www.rotoscopers.com/wp-content/uploads/2014/10/star-wars-rebels-holonet-news.jpg

