If you're using a password on one site you're trusting that site to keep that password safe, so that only you can access your account.
If you're using one password everywhere you're trusting the weakest site to keep your most important account safe, which is obviously a bad idea.
Your friend is trusting the weakest sites he uses (or used at any point in the past) to keep his password scheme safe. Not quite as obviously bad, but to me it doesn't seem to be a particularly good idea either.
Die einzige Möglichkeit diese Art von Videoclips zu vermeiden / erschweren wäre, sobald die AfD anfängt Unfug zu erzählen in Lachen auszubrechen. Werden die "Moderatoren" natürlich nicht machen, und als Publikumsteilnehmer wird das wohl auch eher nur einmal klappen.