Not a dumb question at all. Yeah, in the process of finding you within a data brokers system and sending a removal request, they need to send that broker your personal data... it's a bit awkward. Optery, another PII removal service has a whole section about this in their privacy policy (section 7 of https://www.optery.com/privacy-policy/):

> Optery, Inc. must send your PII to the data brokers and information aggregators included in the Removal Lists... We cannot control, guarantee or warranty how these third-parties will treat your PII or what they will do with it.