Brian Gaff wrote:

you want people out here to click links for which they have
no idea of the content, which in this day and age would most of the time be
folly and possibly dangerous to the health of the computer.

It's obvious they're youtube links, so the danger to the computer is
close to zero

The content could indeed be anything (subject to youtube policies) in
this case it's about a consumer unit that caught fire (one from the
electrician that had to replace it, and another from bigclive tearing it
down for clues).