You usually want to know when you're hitting the database. "Hit the database if the value isn't cached" is useful behavior, but should probably be telegraphed a bit more precisely than just the word "size".
“size” is fine. The person you are responding to is trying to say that complaining about multiple options is a bit strange as you can just use one option. Why is it an issue that other options exist? Who cares. There are synonyms for English words as well, is that an issue as well?
They are not synonyms, they mean slightly different things. And that is the problem.
Because for small datasets the difference doesn’t matter this results in beginner programmers choosing randomly, which 2/3 of time is the wrong choice.
