As a nerd, I fully agree. I love reading up on this stuff. But there are times when taxonomy, as a discipline, has gone a bit crazy.
that aside, what I think is counter-productive is to rely on scientific names when BUYING plants/fish/what-have-you. how many merchants have that level of knowledge? Even a professional botanist, say, might specialise only in one very particular type of plants and know nuts about others. Not to mention the problem of the flu workaround - hahahaha.
And... I like to drool over fish profiles on the aquariumglaser website, and many of their posts have caveats saying that they are not 100% sure of the species of the fish they're featuring.
(Like the one in December featuring auriglobus - "in all probability they are...") if anyone is interested, basically they said there are five species of auriglobus, not one as previously thought, but all five are "darn similar". Well, I have three avocado puffers in quarantine in a smallish tank now, and there's no way I can be sure if they're modestus or not without cutting them up (and maybe not even then...) In cases like this, the common name might be more "accurate" than the Latin. Think of it this way, it can be said that "avocado puffers (or golden puffers or whatnot) are defined by the aquarium trade to be puffers of a certain appearance and behaviour, and belonging to one of five species in the auriglobus genus."