[dronescanfly]

As you stated yourself: Most projects, not all. The 1% of project that are performance critical still matter to thousands of engineers.

Only because most people don't have to do this there are still some people that have to do optimzation where possible.

I hope you understand that optimization without profiling is worthless. Once profiling is identifying something like your datastructure as some kind of bottleneck it might be worth a shot investigating that hint.

And these kind of articles are a nice summary of work being done, giving an overview over techniques and small tweaks that you might not have thought about previously.

It is good work by the author and he deserves being recognized for it. Not being dismissed by the bland statement don't waste your time with optimization.