The problem is that some species of Odonata simply cannot be identified without placing them under a microscope where detailed examinations can be performed. From the perspective of the survey, we have been very reluctant to include records where a specimen does not exist in a museum.
Collectors can add significantly to our knowledge of Odonata if their collecting is done with care.
Given the immense reproductive potential of insects and their short lives, the collection of a few is usually not enough to have any real impact on a population. Even in the worst case, if a human would collect all of the Odonata of a particular species at a pond, their powers of flight would enable other individuals from nearby ponds to recolonize. This is not to suggest that collecting cannot have disastrous consequences. Overcollecting at a few popular sites can be a problem. In addition, there are rare species and rare habitats in the state that cannot support much collecting.