Actually, the issue is partly why species delimitation was restricted under the Strickland code to professionals: every garden breeder was naming plant varieties as new species in the gardening journals.
Ummmm... okay, thanks, but today's rank-based codes lack any restriction on who is allowed to name species. Such a restriction wouldn't help, because it's the competent professionals who disagree the most about such things (and probably it was the same in the middle 19th century).