They're just like other Muslims but they take percepts that are valid in Islam and run with them to the ridiculous extreme.
Same goes for cutting down on Social media or regulating your consumption of news. There is nothing to be gained by turning into a puritan. It makes you feel good about yourself for a while but you're just cutting yourself off from vast dimensions of human experience.
Its possible to read HN once a day just to keep up instead of refreshing it every few hours.
Its possible to stop visiting twitter every hour and perhaps use it a few times a week.
Its possible to restrict your reading to good long form articles in NYT or WaPo or The Economist.
If we started completely cutting out anything and everything that had a remotely negative influence the logical conclusion is that we end up turning into Puritan Wahhabis who don't drink alcohol , ruthlessly suppress sexuality and generally lead colourless lives.
EDIT:
Downvoters , I'd appreciate if you gave your reasons.