I have to say that getting on the "do not call list" actually works, or least for me it has. I might get one call a year about my auto warranty has ran out. I cannot remember ever getting any kind of whacked out text of any kind. Of course I keep a low profile online. I have never used facebook, twitter, instagram, snapchat etc... just because I know all too well how dangerous they are. I do a lot of blocking of all of the above on the workplace network. I also use duckduckgo for a search engine which blocks tracking. I do go outside of it at times, but rarely.