IMO it would be more accurate to say: the delete operation is the one that we know thermodynamics and information theory must charge us for, on a physics level.
In current computers, we’re nowhere near those limits anyway. Reversible computing is interesting research for the future.
Quantum dot cellular automata looked like a good candidate for reversible computers in some post-cmos future, last time I looked at that stuff (years ago—so, it is probably time for a check-in). Notably, they do classical computing, they just exploit quantum effects for the logic gates.
In current computers, we’re nowhere near those limits anyway. Reversible computing is interesting research for the future.