Liberalist as a database is in use by the Liberal Party of Canada. I have never used it during my process of making appointments. I will occasionally receive a note about a candidate after they've come through as being recommended or highly recommended. If they have a particular engagement we're aware of from any political party, I'm not always certain where that information would come from.
For example, if someone made a donation to the NDP or a provincial Conservative Party, that would not be in Liberalist. I'm not sure where the information would come from, but I will on occasion have a candidate's political activities flagged before a final appointment is made.