[RetroTechie]

> Don't forget, you, the dev is 99% of the time the most expensive resource.

That boils down to not valuing time of the people who use your software. Despicable attitude imho.

Developer time is wasted once. User time is wasted for every user, each time the software is used, for as long as it remains in use.

All these can be large: billions of users, many uses each day, software in use for decades.

If you're the only user, no point to spend time on optimizing anything, unless you perceive it as too slow.

If software has billions of users, then almost any effort in optimizing the tiniest bottleneck in it, is worth the effort. A good example of "the needs of the many (users) outweigh the needs of the few (developers)".

A lot of software sits somewhere in between though (not that many users & performs at acceptable speed).