Their aggressive dismissal of the concern is not a good look.
If you have suggestions more than "don't trust this random internet tool even if it gives you free advice, regardless of the value it offers", please let me know [thanks emoji]
A great analogy would be a website that asks users to provide their usernames and passwords for sites to see if it’s a strong password or if it’s been compromised. “Sorry, the credentials stouset / hunter2 were found in our database for Hacker News.”
Sure maybe you’re a saint and don’t store or misuse this data. But such a site would in the best case be training users to do a very wrong and dangerous thing. In the worst case you get breached by attackers who do use the collected data to do evil.
This is actually a really good analogy because it does illustrate that it's not a completely crazy ask—people do trust Troy Hunt to run such a site. But OP should be much more understanding of how dangerous the concept is and offer options to resolve concerns (Troy allows downloading the passwords list to check locally), especially while they're not Troy Hunt-level famous and still are trying to build up trust.
This is actually uploading all the information to the backend and storing it in a database. Like a page that is asking for a service URL, a username, a password, a TOTP secret, sending it all to the server, and having the server check if the credentials have been pwned and saving it all.
Yes many banks charge $30 or more for a wire transfer, but I'd rather just pay the $60 than have a large sum wire transfer lost, stolen, etc.
Some banks/Brokerages are sane and do not charge extra for wire transfers. Fidelity is one such. BOA also(if you have enough assets there, $100k will do it).
My experience was that I was told to send the cashier's check using overnight FedEx because they did not have office in my area.