Not having respect for the scientific process, where using loaded or ambiguous labels introduces culture where only raw technical facts are required.
"Man is most nearly himself when he achieves the seriousness of a child at play." - Heraclitus
"Number 16" is valuable, in that it communicates the fact that the specimen involved is one of a set of at least 16 individual data points. "Brenda" doesn't communicate anything much more than, perhaps, the researcher is bored with their work and wants to have fun instead of doing real science. Besides which, this is a human name, so is it referring to a human or a spider?
Scientific rigour is important. Fanciful notions of cultural joviality, less so.