I also assume that the funding site is required to turn over this data to CSIS anyways, unless they actively ensure that only Canadians are being permitted to donate. Otherwise they risk being treated as an enemy of the Canadian state for ‘clandestine’ foreign interference in Canada’s interests, as keeping that list secret from CSIS while accepting foreign (non-Canadian) donations would exempt them from the political protest protections in the CSIS act, and expose themselves to risk of extradition to Canada.