EDITED
as for internet…ideally, yes. we should all have filters, because yes, there is a lot of harmful material to be found, or even stumbled upon on the internet. however, sometimes internet filters can get in the way and are removed because of that problem. for example, it would block google docs because google docs happens to share one aspect with google video which is blocked to prevent you from watching google videos or youtube. or ebay may be blocked when you need to order something, or whatever. ideally yes we should all have filters, sometimes though its just not possible, and while that makes the nisayon that much greater, a person will just have to work that much harder and thereby receive that much more schar. there are ways of minimizing on that, by using adblock, flashblock, and various other plugins, but sometimes use of unfiltered internet is just unavoidable.