Lem wrote:

[...]

See this posting to a second thread started with the same posting
as this one.

It says the following.

====== QUOTE =======


The problem with this quote is that people might think it's too
complicated and simply give up. But protection is a matter of degree.
Clearly if it is a lab with expensive scientific equipment, they would
have more full proof protection, but my assertion is that simple
protection is better than no protection. A 50nF high voltage capacitor
across the appliance can kill many spikes and possibly increase the
life of a PSU, in many cases such protection is already included. Then
you can go on with more elaborate surge protectors for more and more
rare incidents. All these incidents are possible with associated
probabilities. In any case, a decent surge protector is a once only
investment, so why making a fuss about it?