I don't think accusing people who are hesitant about sending money of wanting only a "perfect" organization to exist is very welcoming or transparent.

I also don't think that asking for information regarding where the money is used and will be used and what sort of thing the group is planning is asking too much when it's monetary support.

It would take USARK less time to write up a blurb about where the money goes than it takes to run around the internet accusing reptile hobbiest of not supporting you only because you're not "perfect". Financial records should be available within reason. Showing donors where their money has made a difference encourages more donations.