I am one of the people (I know there are others) who uses a custom domain and a catchall email address, in order to give a separate email address to every site I sign up to. So example.com is example.com@mydomain.com, example.net is example.net@mydomain.com, etc.

Unfortunately this means that getting a report on my breached email addresses would cost $169/year, which is quite a lot for an individual user. I understand that this use case looks very similar to an organizational or institutional one, so it may be difficult to distinguish them in order to help individuals while still ensuring institutions contribute adequately to HIBP. But I’d very much appreciate putting the power of HIBP within reach for people like me who do this (inexpensive and simple) technique to reduce our exposure to breaches.