I would expect "famous", since this seems lika a feat/achievement to me.
It kind of makes sense here -- Hetzner's competitors probably hate this "notorious" behavior of being so good at ruthlessly[1] slashing prices
[1] See, another example of this sort of thing. Cool!
The marginal cost of cloud computing isn't capex, it's opex. And of that opex, it's mostly electricity. We aren't paying for the hardware so much as we're paying for the cost of keeping it turned on and cool.
Telekom -> Level3 (*.edge1.helsinki1.level3.net et al.) -> Hetzner Helsinki (core*.hel1.hetzner.com)
If you are including the value-add of other cloud features, then it is not a like-for-like comparison.
Massive respect to them for linking the change to electricity prices rather than just "inflation". They know that by doing this there will be pressure to reverse the increase once electricity prices normalise.